Patents by Inventor David P. Cervone

David P. Cervone 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).

  • Clock and timer attachment for telephones
    Patent number: D242847
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: December 28, 1976
    Inventor: David P. Cervone
  • Air cleaner
    Patent number: D254442
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: March 11, 1980
    Inventor: David P. Cervone