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Expired Canadian patentCanada

External lubricant reservoir for joints and bearings

CA 1308670 C · Owner: Larson, Eldon E. · Inventors: Larson, Eldon E.

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 external lubricant reservoir of the type that is replenished by injection is provided in the form of a flexible membrane sealed to a lubricant distributor. The lubricant distributor consists of a membrane- mounting disk and a lubricant feed tube. The feed tube communicates with the reservoir interior through a passage in the disk. The feed tube is designed to be inserted into a lubricant passage in the housing of a joint or a bearing. A preferred embodiment of the reservoir enables the membrane to be wedged between a joint or bearing housing and the underside of the membrane-mounting disk to effect a sealed connection between the two.

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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 2009.
  • 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 18, 1988
GrantedOctober 13, 1992
Term endedOctober 13, 2009
Patent numberCA 1308670 C
Classification (IPC)F16C33/10 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 18, 1988Patent grantedOct 13, 1992Term endedOct 13, 2009

Sources & verification

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