Patents by Inventor Sigmund Cywar

Sigmund Cywar 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).

  • Blackjack card deck
    Patent number: 4014549
    Abstract: A conventional card deck except each card has printed thereon information disposed in rows and files. Files are serially marked to indicate the value of the dealer's card showing. Rows are serially marked with the value of the particular card of the player plus the value of each other card that could be associated as the second card of the player. The intersecting areas of rows and files are marked as to the action the player should take in playing blackjack.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: March 29, 1977
    Inventor: Sigmund Cywar