Patents by Inventor Carlton M. Langton

Carlton M. Langton 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).

  • Cordless handset telephone
    Patent number: D313413
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: January 1, 1991
    Assignee: GEC Plessey Telecommunications Limited
    Inventor: Carlton M. Langton
  • Telephone console
    Patent number: D314965
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: February 26, 1991
    Assignee: GEC Plessey Telecommunications Limited
    Inventor: Carlton M. Langton
  • Base for a telephone handset or similar article
    Patent number: D315352
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: March 12, 1991
    Assignee: GEC Plessey Telecommunications Limited
    Inventor: Carlton M. Langton
  • Stand for telephone handset
    Patent number: D323504
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: January 28, 1992
    Assignee: Gec Plessey Telecommunications Limited
    Inventor: Carlton M. Langton
  • Telecommunications base station
    Patent number: D328069
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: July 21, 1992
    Assignee: GEC Plessey Telecommunications Limited
    Inventor: Carlton M. Langton