Patents by Inventor Charles E. McManama

Charles E. McManama 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).

  • Logging trailer
    Patent number: 4540328
    Abstract: In a transport trailer, an integral loading-ramp system including a rear pivotally-attached ramp, an elevatable front-mounted winch, and structural linkage therebetween that counter-balances the ramp and the winch; enabling quick easy lowering of the ramp and elevating of the winch, and vice versa.
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: September 10, 1985
    Inventor: Charles E. McManama