Patents by Inventor Jack M. Grinwis

Jack M. Grinwis 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).

  • Limb protective covering
    Patent number: 5016648
    Abstract: A limb protective covering having a tubular sleeve of waterproof material for receiving a limb and elongated closure member for tightening the sleeve around the limb. A portion of the sleeve above the closure member is folded over the closure member to form a cuff. A belt attaches to the cuff and wraps around the cuff to completely seal the covered limb.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: May 21, 1991
    Inventors: Ronald E. Brown, Jack M. Grinwis
  • Limb protective coverings
    Patent number: 4530350
    Abstract: A limb protective covering is provided having a tubular sleeve of plastic and an integral hand or foot receiving member and an elongate closure strap heat sealed along a transverse line intermediate its ends to the sleeve, and having an overlying stabilizing loop over the closure strap at the heat sealed line.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: July 23, 1985
    Inventors: Ronald E. Brown, Jack M. Grinwis
  • Limb protective coverings
    Patent number: 4254765
    Abstract: A limb protective covering is provided having a tubular sleeve of plastic and an integral hand or foot receiving member and an elongate closure strap having a panel intermediate its ends fastened to the sleeve by fastening to an inner rigidifying panel with the sleeve sandwiched between.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: March 10, 1981
    Inventors: Ronald E. Brown, Jack M. Grinwis