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Expired Canadian patentCanada

Gutter broom segment and assembly

CA 1280261 C · Owner: Lowe, James T. · Inventors: Lowe, James T.

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 gutter broom assembly and a brush segment for use therein, wherein the segment has self-locking lugs formed thereon which are readily engaged in apertures formed in a broom support plate to thereby fix the segments to the plate. The gutter broom includes several segments which, when assembled on the support plate, provide a broom periphery which alternatively form peripheral "cam lobes" or "discontinuities" serving to increase the agitation imparted to larger pieces of debris, whereby such debris is readily displaced from a gutter wall rather than being gently pushed ahead of the broom along the gutter wall.

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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 February 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 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 5, 1987
GrantedFebruary 19, 1991
Term endedFebruary 19, 2008
Patent numberCA 1280261 C
Classification (IPC)A46B3/16

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJune 5, 1987Patent grantedFeb 19, 1991Term endedFeb 19, 2008

Sources & verification

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