Patents by Inventor Roger J. Tosto

Roger J. Tosto 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).

  • Telephone line hold and hold release apparatus
    Patent number: 4674118
    Abstract: A telephone line hold and hold release circuit which, after a central office line which is connected to at least two telephone sets in a telephone terminal system has been seized in response to an incoming call and then placed on HOLD, releases that central office line from the HOLD condition in response to either (i) the re-closing of the hookswitch of the telephone set which seized the central office line, or (ii) the closing of the hookswitch of another telephone set connected to that central office line, or (iii) the release of the central office line by the caller.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: June 16, 1987
    Assignee: Tie/Communications, Inc.
    Inventor: Roger J. Tosto
  • Telephone set
    Patent number: D287491
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: December 30, 1986
    Assignee: TIE/Communications, Inc.
    Inventors: Wilbert C. Brown, Eric K. Babbitt, Roger J. Tosto
  • Telephone set
    Patent number: D287492
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: December 30, 1986
    Assignee: TIE/Communications, Inc.
    Inventors: Wilbert C. Brown, Eric K. Babbitt, Roger J. Tosto
  • Telephone set
    Patent number: D287585
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: January 6, 1987
    Assignee: TIE/Communications, Inc.
    Inventors: Wilbert C. Brown, Roger J. Tosto, Eric K. Babbitt, John Cuccio
  • Telephone set
    Patent number: D291436
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: August 18, 1987
    Assignee: TIE/communications, Inc.
    Inventors: Wilbert C. Brown, Roger J. Tosto, Eric K. Babbitt
  • Transmitter
    Patent number: D293088
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: December 8, 1987
    Assignee: TIE/Communications, Inc.
    Inventors: Wilbert C. Brown, Roger J. Tosto
  • Telephone set
    Patent number: D295405
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: April 26, 1988
    Assignee: TIE/communications, Inc.
    Inventors: Wilbert C. Brown, Eric K. Babbitt, Roger J. Tosto, John Cuccio