Patents by Inventor John P. Crittenden

John P. Crittenden 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).

  • Multiple lever side pole wrench
    Patent number: 4964664
    Abstract: A wrench for use in the erecting of tent poles, characterized in that a tent pole of considerable height may be erected by several persons applying pressure to the individual lever arms of the wrench to thereby position the tent pole erectly. The wrench is designed for use with tent poles having a hole therethrough. The wrench has a complementary projection extending from one of its lever arms for insertion into the complimentary hole of the tent pole.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: October 23, 1990
    Inventor: John P. Crittenden