Patents by Inventor Arthur Strathman

Arthur Strathman 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).

  • Seed separator
    Patent number: D249166
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: August 29, 1978
    Inventor: Arthur Strathman
  • Shaker for separating seeds
    Patent number: D263269
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: March 9, 1982
    Inventor: Arthur Strathman
  • Weight scale
    Patent number: D263285
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: March 9, 1982
    Assignee: Magic Dragon Enterprises
    Inventor: Arthur Strathman
  • Beam scale
    Patent number: D263286
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: March 9, 1982
    Inventor: Arthur Strathman