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Expired Canadian patentCanada

Integral outboard bearing support for doctor oscillator

CA 2245275 C · Owner: Mitsubishi Heavy Industries, Ltd. · Inventors: Wywialowski, Frank 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

An integral outboard bearing support for a gear reducer on a papermaking machine oscillating doctor. The bearing support rotatably supports a distal end of the gear reducer's drive shaft to reduce deflection andfatigue. The outboard support also aligns internal bearing supports with the outboard support to optimize performance by preventing current reducer shaft and support bearing failures.

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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 August 10, 1998 and granted October 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2020.
  • 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 10, 1998
GrantedOctober 1, 2002
Term endedAugust 10, 2018
Patent numberCA 2245275 C
Classification (IPC)F16C35/12 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 10, 1998Patent grantedOct 1, 2002Term endedAug 10, 2018

Sources & verification

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