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Expired Canadian patentCanada

Device in a grass trimmer

CA 1287218 C · Owner: Electrolux Northern Limited · Inventors: Mead, David Edward

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 grass trimming device is capable of adopting at least two alternative configurations, in one of which a cutting plane is substantially horizontal for use in grass trimming, and in the other of which the cutting plane is substantially vertical for edge trimming. A parting plane is defined by a housing of the cutting head such that rotation about an axis perpendicular to this plane through 180° results in the required switching. The shaft axis is preferably inclined at 10-15° with respect to the rotational axis.

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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 August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledJune 22, 1988
GrantedAugust 6, 1991
Term endedAugust 6, 2008
Patent numberCA 1287218 C
Classification (IPC)B26B7/00 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJune 22, 1988Patent grantedAug 6, 1991Term endedAug 6, 2008

Sources & verification

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