Patents by Inventor William G. MacKenzie

William G. MacKenzie 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).

  • Patent number: 4406928
    Abstract: A multi-purpose telephone holder is adapted to hold or position a compact telephone subset in three different orientations. The unit comprises a first tray module which essentially is a relatively rectangular housing configuration having sloping sidewalls, a back wall, an open front end and a bottom surface. A second assembly is a clip mechanism which is adapted to coact with the bottom surface of the tray and has two side retaining arms and two bottom arms for accommodating the subset in a vertical position. Suitable apertures are located in the bottom surface of the tray to enable the clip and tray to be positioned on a wall above a standard baseboard telephone jack. A third component consists of an adapter wall plate which has a peripheral flange for coacting with corresponding flanges on the bottom surface of the tray.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: September 27, 1983
    Assignee: International Telephone and Telegraph Corporation
    Inventor: William G. MacKenzie
  • Patent number: 4251696
    Abstract: There is disclosed a compact telephone instrument with a telescoping operation. A first housing has a conventional telephone receiver located within a hollow recess thereof. The housing is removably secured to a bottom housing which contains a dialer assembly. A series of guide mechanisms are formed in both housings and are used to accommodate a third housing containing a telephone transmitter. The third housing is slidably mounted within the receiver and dialer housings to enable on-hook and off-hook operations by sliding and extending outwardly for off-hook operation and by pushing the housing inward for on-hook operation. The transmitter housing is accurately guided between the receiver and dialer housings by means of the guide mechanisms to insure accurate and reliable operation relatively independent of the nature of the force exerted by a user on the transmitter housing when operating the instrument.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: February 17, 1981
    Assignee: International Telephone and Telegraph Corporation
    Inventors: William G. MacKenzie, James T. Asaki
  • Patent number: D260992
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: September 29, 1981
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Martin Feinberg, William G. MacKenzie
  • Patent number: D260997
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: September 29, 1981
    Assignee: International Telephone and Telegraph Corporation
    Inventors: James T. Asaki, William G. MacKenzie
  • Patent number: D264465
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: May 18, 1982
    Assignee: International Telephone and Telegraph Corporation
    Inventor: William G. MacKenzie
  • Patent number: D272344
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: January 24, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventor: William G. MacKenzie
  • Patent number: D274243
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: June 12, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventors: James Asaki, William G. MacKenzie
  • Patent number: D284008
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: May 27, 1986
    Assignee: Apple Computer, Inc.
    Inventors: Hartmut H. Esslinger, Stephen Peart, William G. MacKenzie
  • Patent number: D286052
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: October 7, 1986
    Assignee: Apple Computer, Inc.
    Inventors: Stephen Peart, Mark F. Pruitt, William G. MacKenzie