Patents by Inventor Frank E. Lambrcht

Frank E. Lambrcht 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 telephone with internal debit and credit memory
    Patent number: 5138650
    Abstract: A method of handling a charge authorization in a cordless phone (12) is provided wherein a memory (53) in the cordless phone (12) is credited (634) by a value representing a purchased amount prior to a usage of the cordless phone (12). The usage of the cordless phone is allowed (420) depending on that value which is debited (522) during the usage of the cordless phone.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: August 11, 1992
    Assignee: Motorola, Inc.
    Inventors: John I. Stahl, David L. Brown, David R. Heeschen, Robert L. Breeden, Richard E. Bessom, Frank E. Lambrcht, Mark S. Stuglik