Patents by Inventor Ethel Sheifer

Ethel Sheifer 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).

  • Device and method for silent bridge bidding
    Patent number: 5482275
    Abstract: A device for non-verbal contract bridge bidding consisting of a base with two rotatable members mounted thereon, the base having four groups each having the same notations identifying the card suits, no trump, pass double and redouble spaced 90 degrees from each adjacent group, the first lower member having four open slots located 90 degrees apart adapted to expose one notation on the base, the lower member having four groups each having the same notations 1, 2, 3, 4, 5, 6 and 7 spaced 90 degrees apart, the second upper member having four open slots located 90 degrees apart sized to identically expose one notation on the first disk.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 9, 1996
    Inventors: Abraham Grinoch, Ethel Sheifer