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Expired Canadian patentCanada

Blind fastener

CA 1107095 A · Owner: Usm Corporation · Inventors: Osborne, Michael L.; Hadley, Michael J.

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

Blind Fastener, Abstract of the Disclosure A plastics pull-type blind fastener has a pull-part with a pulling stem and legs which pass through holes in a workpiece shoulders of, the legs engaging the workpiece at the blind side and a push-part with, a head to engage the workpiece at the accessible side and a plug extending between the legs to keep them apart after setting. The legs are accommodated in complementary shaped apertures in the head of the push-part and at, least one part has teeth to lock the parts together after setting and allow, removal of the pulling stem.

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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 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 27, 1978
GrantedAugust 18, 1981
Term endedAugust 18, 1998
Patent numberCA 1107095 A
Classification (IPC)F16B13/04

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 27, 1978Patent grantedAug 18, 1981Term endedAug 18, 1998

Sources & verification

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