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Expired Canadian patentCanada

Height adjuster for lawnmowers

CA 1284031 C · Owner: Eilles, Frank A. · Inventors: Eilles, Frank A.

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

A lawnmower has a series of openings in the housing into which wheel axles may be selectively engaged to adjust the cutting height. The axis ends are grooved, and the housing provided with a slot into which a clip is insertible to coact with the groove and retain the axle in position.

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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 May 14, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 1989
GrantedMay 14, 1991
Term endedMay 14, 2008
Patent numberCA 1284031 C
Classification (IPC)A01D34/74

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 11, 1989Patent grantedMay 14, 1991Term endedMay 14, 2008

Sources & verification

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