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Expired Canadian patentCanada

Protective device for a driveshaft, having radial supporting means for the protective funnel

CA 2189715 C · Owner: Kretschmer, Horst · Inventors: Kretschmer, Horst; Herchenbach, Paul

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

The invention relates to a protective device which by, means of connecting caps 8 and sliding rings is supported, on the two universal joints 2 2'. Furthermore, each, connecting cap 8 is formed to allow a protective funnel 12 to be connected thereto. Protective devices of said type provide protection against contact and are stationary while, the driveshaft 1 rotates. By means of spokes 19 each, connecting cap 8 is attached to a supporting ring 13 which supports the protective funnel 12 from the inside. When the protective funnel 12 is subjected to radial loads for, example if the driveshaft is stepped on unintentionally the, purpose of the above measure is to prevent the protective funnel …

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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

  • Filed November 6, 1996 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 6, 1996
GrantedJanuary 2, 2001
Term endedNovember 6, 2016
Patent numberCA 2189715 C
Classification (IPC)F16D3/84

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 6, 1996Patent grantedJan 2, 2001Term endedNov 6, 2016

Sources & verification

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