Ladder Patents (Class D25/64)
  • Patent number: D242925
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: January 4, 1977
    Inventor: Athol John William Salter
  • Patent number: D243019
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: January 11, 1977
    Assignee: Confer Plastics, Inc.
    Inventor: Raymond C. Confer
  • Patent number: D243953
    Type: Grant
    Filed: August 15, 1973
    Date of Patent: April 5, 1977
    Assignee: Vinyl-Fab Industries
    Inventor: Peter F. Gannon
  • Patent number: D244093
    Type: Grant
    Filed: August 15, 1973
    Date of Patent: April 19, 1977
    Assignee: Vinyl-Fab Industries
    Inventor: Peter F. Gannon
  • Patent number: D249031
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: August 22, 1978
    Assignee: Lords III Research & Development Co.
    Inventor: Phil K. Tarran
  • Patent number: D249032
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: August 22, 1978
    Assignee: Lords III Research & Development Co.
    Inventor: Phil K. Tarran
  • Patent number: D254394
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: March 4, 1980
    Inventors: Frank B. Leslie, Alexander S. Kiss
  • Patent number: D258148
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: February 3, 1981
    Inventor: Gilbert Loix
  • Patent number: D265131
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: June 22, 1982
    Inventors: Ronald C. Wallin, Wesley A. Wallin
  • Patent number: D265250
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: June 29, 1982
    Inventors: Ronald C. Wallin, Wesley A. Wallin
  • Patent number: D265251
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: June 29, 1982
    Inventors: James W. Darby, David L. Darby
  • Patent number: D275798
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: October 2, 1984
    Assignee: Harris Manufacturing Corporation
    Inventors: Jerome Ruda, Vernon L. Ludwig
  • Patent number: D276467
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: November 20, 1984
    Inventor: Edouard Singer
  • Patent number: D293476
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: December 29, 1987
    Inventor: Anthony E. Morales
  • Patent number: D295222
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: April 12, 1988
    Inventor: Patricia Rudolph
  • Patent number: D297768
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: September 20, 1988
    Assignee: Emerson Electric Co.
    Inventor: Claude R. Wallick, Jr.
  • Patent number: D300365
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: March 21, 1989
    Assignee: Emerson Electric Co.
    Inventors: Claude R. Wallick, Jr., Thomas J. Schmitt
  • Patent number: D300366
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: March 21, 1989
    Assignee: Emerson Electric Co.
    Inventors: Claude R. Wallick, Jr., Thomas J. Schmitt
  • Patent number: D304084
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: October 17, 1989
    Inventor: Kenneth H. Meng
  • Patent number: D335540
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: May 11, 1993
    Inventor: Kim E. Elliott
  • Patent number: D341895
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: November 30, 1993
    Assignee: Leif & Gittan AB
    Inventor: Arne Idh
  • Patent number: D343906
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: February 1, 1994
    Inventor: Jules Murray
  • Patent number: D344594
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: February 22, 1994
    Inventor: Patrick F. Whitney
  • Patent number: D347069
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: May 17, 1994
    Inventor: Wen-Hua Lu
  • Patent number: D356164
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: March 7, 1995
    Inventor: Robert M. Rinke
  • Patent number: D359134
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: June 6, 1995
    Inventor: Thomas R. Toews
  • Patent number: D359470
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: June 20, 1995
    Inventor: William B. Allyn
  • Patent number: D363784
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: October 31, 1995
    Inventor: Lawrence N. Lund
  • Patent number: D365402
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: December 19, 1995
    Assignee: Foxdale Developments Limited
    Inventor: Ronald B. T. Jones
  • Patent number: D370736
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: June 11, 1996
    Assignee: BRK Brands, Inc.
    Inventors: Patrick Douglas, Don Jursich, Kenneth R. Fenne
  • Patent number: D372952
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: August 20, 1996
    Inventor: Terry V. Parrish
  • Patent number: D372987
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: August 20, 1996
    Inventor: Ernest Eason
  • Patent number: D380558
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: July 1, 1997
    Inventor: Michael Ray Clavin
  • Patent number: D387878
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 16, 1997
    Assignee: Irthi Inc.
    Inventor: Marc Jacques
  • Patent number: D388520
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: December 30, 1997
    Assignee: Hercules Products, Inc.
    Inventors: Leland J. Hoffman, deceased, L. A. Stocking, executor
  • Patent number: D388882
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: January 6, 1998
    Assignee: Cosco, Inc.
    Inventor: James M. Kain
  • Patent number: D389923
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: January 27, 1998
    Assignee: EZ Dock, Inc.
    Inventors: Jeffrey M. Hillman, Clifton D. Vierus
  • Patent number: D392744
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: March 24, 1998
    Inventor: Brian Staal
  • Patent number: D394715
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: May 26, 1998
    Inventor: Paul Willard Pearson
  • Patent number: D401353
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 17, 1998
    Assignee: Werner Co.
    Inventors: Randall Bell, Walter Herbst