Patents by Inventor Harold E. Buffum

Harold E. Buffum 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: D270078
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: August 9, 1983
    Inventor: Harold E. Buffum
  • Patent number: D345129
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: March 15, 1994
    Inventors: Harold E. Buffum, Paul E. McGaffney