Patents Issued in February 22, 1977
  • Refractory abrasive body containing chromium oxide and method of producing it
    Patent number: 4007020
    Abstract: A new ceramic treatment process and product and, more particularly, a process for forming and treating and shaping and treating of porous skeletal bodies to produce hardened dimensionally stable end products at relatively low temperatures and the resulting materials produced thereby which comprises the steps of treating a porous skeletal body by impregnating the interstices of the porous body with a compound of a metal capable of being converted to an oxide in situ at relatively low temperatures, heating the body so impregnated at temperatures well below normal vitrification to a temperature of at least 600.degree. F. and for a period of time sufficient to convert the compound impregnated therein to an oxide and repeating the impregnation and heating steps until the desired degree of hardness is obtained.
    Type: Grant
    Filed: November 19, 1973
    Date of Patent: February 22, 1977
    Assignee: Kaman Sciences Corporation
    Inventors: Peter K. Church, Oliver J. Knutson
  • Sport shoe
    Patent number: D243421
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: February 22, 1977
    Assignee: CITC Industries, Inc.
    Inventor: William J. Cohen
  • Tongue brush
    Patent number: D243422
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: February 22, 1977
    Inventor: Ilona D. Varga
  • Upholstered seat
    Patent number: D243423
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: February 22, 1977
    Assignee: Fratelli Saporiti
    Inventor: Alberto Rosselli
  • Upholstered seat
    Patent number: D243424
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: February 22, 1977
    Assignee: Fratelli Saporiti
    Inventor: Giovanni Offredi
  • Chair
    Patent number: D243425
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: February 22, 1977
    Inventor: Sidney Gibson
  • Hot comb holder
    Patent number: D243426
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: February 22, 1977
    Inventor: John A. Joslyn
  • Frame for a seat
    Patent number: D243427
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: February 22, 1977
    Inventor: William R. Watts
  • Covered food bowl or similar article
    Patent number: D243428
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventor: James Lloyd Thrush
  • Covered food bowl or similar article
    Patent number: D243429
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventor: James Lloyd Thrush
  • Covered food bowl or similar article
    Patent number: D243430
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventor: James Lloyd Thrush
  • Goblet or similar article
    Patent number: D243431
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventor: Frank J. Benes
  • Plate or the like
    Patent number: D243432
    Type: Grant
    Filed: July 18, 1975
    Date of Patent: February 22, 1977
    Assignee: Corning Glass Works
    Inventor: Ottorino N. Mercadante
  • Pitcher or similar article
    Patent number: D243433
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventor: Frank J. Benes
  • Pitcher
    Patent number: D243434
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: February 22, 1977
    Assignee: Plastics Manufacturing Company
    Inventor: Richard E. R. Cone
  • Combined table place mat and napkin holder
    Patent number: D243435
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: February 22, 1977
    Inventor: Beulah J. Hoffman
  • Barbecue grill
    Patent number: D243436
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: February 22, 1977
    Inventor: Kenneth J. Vida
  • Article of flatware
    Patent number: D243437
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: February 22, 1977
    Assignee: International Silver Company
    Inventor: William J. Knope
  • Rake for spreading insulation in building structures
    Patent number: D243438
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: February 22, 1977
    Inventor: Ray E. Batley
  • Handle for a percussion tool or the like
    Patent number: D243439
    Type: Grant
    Filed: July 29, 1975
    Date of Patent: February 22, 1977
    Assignee: Atlas Copco Aktiebolag
    Inventor: Stig Rune Zernell
  • Support hook for shelves or the like
    Patent number: D243440
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: February 22, 1977
    Assignee: String-Seffle Mobelfabrik AB
    Inventor: Nils Erik Strinning
  • Hook
    Patent number: D243441
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: February 22, 1977
    Inventor: Alexander L. Podd
  • Bottle
    Patent number: D243442
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: February 22, 1977
    Assignee: Max Factor & Co.
    Inventor: Robin M. Montgomery
  • Combined display card and holder for a cylindrical article
    Patent number: D243443
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: February 22, 1977
    Inventor: Tadaaki Hayashi
  • Clock face
    Patent number: D243444
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: February 22, 1977
    Inventor: Daniel L. Miller
  • Boat
    Patent number: D243445
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: February 22, 1977
    Assignee: Bell Industries
    Inventor: Nasim Khoury
  • Sailboat
    Patent number: D243446
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: February 22, 1977
    Assignee: Reinell Boats, Inc.
    Inventor: David T. Livingston
  • Foot lever for motorcycles
    Patent number: D243447
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: February 22, 1977
    Assignee: Interstate Sports, Inc.
    Inventors: Grover C. Smith, III, Thomas M. Smith
  • Pneumatic tire tread and buttress
    Patent number: D243448
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: February 22, 1977
    Assignee: Uniroyal A.G.
    Inventor: Gerhard Franz-Josef Senger
  • Vehicle tire
    Patent number: D243449
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: February 22, 1977
    Assignee: Bridgestone Tire Company Limited
    Inventors: Toshio Hayakawa, Masao Nakamura
  • Aerodynamic drag reduction device for vehicles
    Patent number: D243450
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: February 22, 1977
    Assignee: Aerovironment Inc.
    Inventors: Paul B. MacCready, Jr., Peter B. S. Lissaman
  • Movie camera
    Patent number: D243451
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: February 22, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shigeo Mizukawa
  • Color mixing head for a photographic enlarging apparatus
    Patent number: D243452
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: February 22, 1977
    Assignee: Durst AG Fabrik Fototechnischer Apparate
    Inventor: Mario Gandini
  • Illuminable calendar holder or similar article
    Patent number: D243453
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: February 22, 1977
    Assignee: Collection Corporation
    Inventor: Samuel J. Friedland
  • Storage tank
    Patent number: D243454
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: February 22, 1977
    Inventors: Marvin D. Kerr, Donald R. Kerr
  • Cryogenic liquid storage vessel
    Patent number: D243455
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: February 22, 1977
    Assignee: Airco, Inc.
    Inventor: Nicholas A. Verini
  • Welding outlet
    Patent number: D243456
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: February 22, 1977
    Assignee: WFI International, Inc.
    Inventor: Bobby W. Ryan
  • Welding outlet
    Patent number: D243457
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: February 22, 1977
    Assignee: WFI International, Inc.
    Inventor: Bobby W. Ryan
  • Filter
    Patent number: D243458
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: February 22, 1977
    Assignee: Pall Corporation
    Inventor: David B. Pall
  • Welding machine
    Patent number: D243459
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: February 22, 1977
    Assignee: Saban Electric Corporation
    Inventor: Theodore J. Bliss
  • Portable personal computer
    Patent number: D243460
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: February 22, 1977
    Assignee: International Business Machines Corporation
    Inventors: John Greenfield, Collan B. Kneale, Frank Wilkey, Jr.
  • Desk top accounting machine
    Patent number: D243461
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: February 22, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Mario Bellini
  • String fish sculpture
    Patent number: D243462
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: February 22, 1977
    Inventor: Margaret D. Sud
  • Vase or similar article
    Patent number: D243463
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: February 22, 1977
    Assignee: Anchor Hocking Corporation
    Inventors: Frank J. Benes, James Lloyd Thrush
  • Bird house
    Patent number: D243464
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: February 22, 1977
    Inventor: Michael L. Greene
  • Bird feeder
    Patent number: D243465
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: February 22, 1977
    Inventor: Michael L. Greene
  • Cemetery memorial monument
    Patent number: D243466
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: February 22, 1977
    Inventor: Christos J. Bentas
  • Tennis racquet frame
    Patent number: D243467
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: February 22, 1977
    Inventor: George Kouvelas
  • Game board
    Patent number: D243468
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: February 22, 1977
    Inventor: Irving N. Levey
  • Rocking toy
    Patent number: D243469
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: February 22, 1977
    Assignee: Randolph C. Karrh
    Inventor: William U. Nipper, Jr.