Patents by Inventor Alvin C. Copeland

Alvin C. Copeland 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: D243533
    Type: Grant
    Filed: April 15, 1975
    Date of Patent: March 1, 1977
    Inventor: Alvin C. Copeland
  • Patent number: D245518
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: August 23, 1977
    Inventor: Alvin C. Copeland