Patents by Inventor Rex C. Testro

Rex C. Testro 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).

  • Stationery folder
    Patent number: D250342
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: November 21, 1978
    Inventors: Keith R. Testro, Rex C. Testro
  • Stationery folder
    Patent number: D250591
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 19, 1978
    Inventors: Keith R. Testro, Rex C. Testro
  • Stationery folder
    Patent number: D250592
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 19, 1978
    Inventors: Keith R. Testro, Rex C. Testro
  • Stationery folder
    Patent number: D250593
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 19, 1978
    Inventors: Keith R. Testro, Rex C. Testro
  • Stationery folder
    Patent number: D251093
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: February 13, 1979
    Inventors: Keith R. Testro, Rex C. Testro