Patents by Inventor Rosaire Marcotte

Rosaire Marcotte 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).

  • Silver alloys of exceptional and reversible hardness
    Patent number: 4869757
    Abstract: A unique hardenable silver alloy is provided which is solution annealed and preferably age-hardened to yield a silver alloy of exceptional and reversible hardness. The alloys utilize intermetallic systems comprising; silver, copper, combined with lithium alone or tin alone in varying percent amounts, or silver, copper, lithium and either tin or antimony, or silver, copper, lithium, tin and antimony, or silver, copper, lithium, tin and bismuth, or silver, copper, lithium, tin, bismuth and antimony.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: September 26, 1989
    Assignee: Leach & Garner Company
    Inventors: Thomas W. Eagar, Dwarika P. Agarwal, Laura L. Bourguignon, Rosaire Marcotte
  • Silver alloys of exceptional and reversible hardness
    Patent number: 4810308
    Abstract: A unique hardenable silver alloy is provided which is solution annealed and preferably age-hardened to yield a silver alloy of exceptional and reversible hardness. The alloys utilize intermetallic systems comprising silver, copper, combined with lithium alone or tin alone in varying percent amounts, or silver, copper, lithium and either tin or antimony, or silver, copper, lithium and either aluminum or indium or zinc, or silver, copper, antiomony and either aluminum or indium or zinc, or silver, copper, lithium, tin and antimony, or silver, copper, lithium, tin and bismuth, or silver, copper, lithium, tin, bismuth and antimony.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: March 7, 1989
    Assignee: Leach & Garner Company
    Inventors: Thomas W. Eagar, Dwarika P. Agarwal, Laura L. Bourguignon, Rosaire Marcotte