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Expired Canadian patentCanada

Process for making jewelry

CA 1102092 A · Owner: Greve, Donald W. · Inventors: Greve, Donald W.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Individual items of personalized jewelry can be made with the name of the wearer or other personal message set forth in prominently embossed or deeply sunken letters on the jewelry item without expensive tools dies, molds, or fixtures, and preferably in conjunction with the lost wax process. A name or other alpha-numeric message can be, prepared, for example, with a typewriter. Special designs such as a family coat of arms or an organization symbol can, also be prepared for use with a name or other message. The name message and design can be produced in either sunken or embossed letters by photo-etching the name or message onto a substrate bearing a photopolymerizable resin. The …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted June 2, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 9, 1978
GrantedJune 2, 1981
Term endedJune 2, 1998
Patent numberCA 1102092 A
Classification (IPC)B22D25/02

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 9, 1978Patent grantedJune 2, 1981Term endedJune 2, 1998

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.