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Expired Canadian patentCanada

Device for securing elements to a tapered shaft

CA 1105782 A · Owner: General Signal Corporation · Inventors: Gjertsen, Leroy E.

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 of the Disclosure, A gauge movement includes a tapered plastic output shaft having a member disposed symetrically thereabout. The member has first and second ends and a conical inner surface disposed about and adapted to receive the tapered plastic output shaft. The conical inner surface extends substantially from the first end to the second end and defines a conical bore through the member. The bore has a first inside diameter at the first end and a second inside diameter smaller than, the first inside diameter at the second end. The member is, further provided with a stepped outer surface having a first outside diameter at the first end and a second outside diameter, larger than …

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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 July 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 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.
FiledAugust 25, 1978
GrantedJuly 28, 1981
Term endedJuly 28, 1998
Patent numberCA 1105782 A
Classification (IPC)F16D1/06 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedAug 25, 1978Patent grantedJuly 28, 1981Term endedJuly 28, 1998

Sources & verification

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