Patents by Inventor William Macowski

William Macowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pencil sharpener
    Patent number: D249152
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: August 29, 1978
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Card file
    Patent number: D250343
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: November 21, 1978
    Assignee: Ketcham & McDougal, Inc.
    Inventor: William Macowski
  • Pen receptacle unit
    Patent number: D252034
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: June 5, 1979
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Ash tray
    Patent number: D255051
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: May 20, 1980
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Compass hood
    Patent number: D257237
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: October 7, 1980
    Assignee: Aqua Meter Instrument Corp.
    Inventor: William Macowski
  • Base for a desk pen set and calendar or similar articles
    Patent number: D257778
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: January 6, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Desk pad
    Patent number: D258293
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: February 17, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Desk set
    Patent number: D259122
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: May 5, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Desk set
    Patent number: D259123
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: May 5, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Desk set
    Patent number: D259124
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: May 5, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Pencil well
    Patent number: D259126
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: May 5, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Letter tray
    Patent number: D259428
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: June 2, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Combined desk pad and pen assemblies
    Patent number: D260908
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: September 22, 1981
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Base for a desk set
    Patent number: D263155
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: February 23, 1982
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Pencil sharpener
    Patent number: D265323
    Type: Grant
    Filed: September 4, 1980
    Date of Patent: July 6, 1982
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Compass
    Patent number: D268171
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: March 8, 1983
    Assignee: Ketchem & McDougall, Inc.
    Inventor: William Macowski
  • Memo paper holder
    Patent number: D287374
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: December 23, 1986
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Postal scale
    Patent number: D289385
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: April 21, 1987
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Pencil sharpener
    Patent number: D298840
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: December 6, 1988
    Assignee: Ketcham & McDougall, Inc.
    Inventor: William Macowski
  • Combined clock and wall plaque
    Patent number: D307396
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: April 24, 1990
    Assignee: Tropar Manufacturing Co., Inc.
    Inventors: Peter V. Ilaria, William Macowski