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Expired Canadian patentCanada

Ball bearing assembly

CA 1161481 A · Owner: Emerson Electric Co. · Inventors: Larou, Albert M.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract: A ball bearing assembly comprising inner and outer races with a plurality of balls therebetween. The balls being arranged in spaced relationship by a retainer constructed of two like parts joined together which retainer is made of steel and preferably steel stampings and coated with a plastic material (36) preferably a nylon, such as Nylon 11.

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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 January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
  • 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 16, 1980
GrantedJanuary 31, 1984
Term endedJanuary 31, 2001
Patent numberCA 1161481 A
Classification (IPC)F16C33/32 +2 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedOct 16, 1980Patent grantedJan 31, 1984Term endedJan 31, 2001

Sources & verification

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