Patents by Inventor Peter D. Kamenstein

Peter D. Kamenstein 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: D247653
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: March 28, 1978
    Inventor: Peter D. Kamenstein
  • Patent number: D251170
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: February 27, 1979
    Assignee: M. Kamenstein, Inc.
    Inventor: Peter D. Kamenstein
  • Patent number: D251172
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: February 27, 1979
    Assignee: M. Kamenstein, Inc.
    Inventor: Peter D. Kamenstein