Patents by Inventor John Maliskas

John Maliskas 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).

  • Desk telephone set
    Patent number: D293104
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: December 8, 1987
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Telephone instrument
    Patent number: D294350
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: February 23, 1988
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Telephone instrument
    Patent number: D295038
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: April 5, 1988
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Telephone instrument
    Patent number: D295039
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: April 5, 1988
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Telephone answering instrument
    Patent number: D296688
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: July 12, 1988
    Assignee: GTE Communication Systems
    Inventor: John Maliskas
  • Telephone answering instrument
    Patent number: D298315
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: November 1, 1988
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Telephone answering instrument
    Patent number: D298316
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: November 1, 1988
    Assignee: GTE Communication Systems Corporation
    Inventor: John Maliskas
  • Hose reel
    Patent number: D349039
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: July 26, 1994
    Assignee: Melnor Inc.
    Inventors: Sidney J. Goodman, John Maliskas