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Expired Canadian patentCanada

Bearing race

CA 1115316 A · Owner: Torrington Company (The) · Inventors: Benson, Carl F.

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

At least one groove extends longitudinally across the race. The race includes a relatively soft metal core with its inner and outer surfaces being carburized. The sides of the groove are also carburized and a carburized portion extends radially from the bottom of the groove entirely across the race.

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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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 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.
FiledOctober 11, 1979
GrantedDecember 29, 1981
Term endedDecember 29, 1998
Patent numberCA 1115316 A
Classification (IPC)F16C33/58 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedOct 11, 1979Patent grantedDec 29, 1981Term endedDec 29, 1998

Sources & verification

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