Patents by Inventor Willfred Goldschmidt

Willfred Goldschmidt 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: 4269527
    Abstract: An applicator for pulverizable substances. The applicator comprises, in co-operation, a resilient container for the pulverizable substance, a permeable membrane through which said substance passes and means for maintaining and releasing said substance.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: May 26, 1981
    Assignee: American Cyanamid Company
    Inventors: Donald E. Lipfert, Willfred Goldschmidt
  • Patent number: 3952737
    Abstract: A contraceptive device in the form of a pessary or cervical cap for attachment to the cervix, comprising a valve mechanism to permit outflow of material from the cervix and prevent inflow of material into the cervix.
    Type: Grant
    Filed: August 28, 1974
    Date of Patent: April 27, 1976
    Assignee: The Medevice Company
    Inventors: Donald E. Lipfert, Seymour L. Romney, Robert Zeidman, Willfred Goldschmidt
  • Patent number: D248827
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: August 8, 1978
    Assignee: Beecham, Inc.
    Inventors: Willfred Goldschmidt, Wiley Alan Kittrell
  • Patent number: D250732
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: January 2, 1979
    Assignee: Norlin Music, Inc.
    Inventor: Willfred Goldschmidt
  • Patent number: D264253
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: May 4, 1982
    Assignee: Dual-Lite, Inc.
    Inventors: Willfred Goldschmidt, Wiley A. Kittrell, David G. Bragin
  • Patent number: D284310
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: June 17, 1986
    Assignee: Ledu Corporation
    Inventors: Irving Schaffer, Willfred Goldschmidt