Patents by Inventor John C. Hargrave

John C. Hargrave 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).

  • Elastomer formulated fishing product
    Patent number: 4389805
    Abstract: A fishing product having a specific gravity greater than 1.04 but less than 4.00 is presented which includes a body formulated from an elastomer compounded with a gravity change additive dispersed throughout the body to stabilize buoyancy in water, mineral oil and crosslinking agents to prevent leaching of toxic materials. The product is adapted for connection with a fishing line by means of a swivel axially mounted in the sinker body and bonded thereto.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: June 28, 1983
    Inventor: John C. Hargrave