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Expired Canadian patentCanada

Gutter assembly

CA 1300338 C · Owner: Williams, Robert D. · Inventors: Williams, Robert D.

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 assembly with a leaf and pine needle guard for attachment along the roof edge of a structure. Mounting brackets are provided for securing the assembly to the structure along its length. The gutter assembly includes an elongated trough with a curved shaped elongated shed surface engaging the roof edge and having a plurality of longitudinally spaced rows of slots and interconnecting slits along its vertical portion. Each of the slots define therebetween a compound curved flange, its apex residing within the vertical plane of the water shed. The slots selectively allow the water to enter the trough position below while excluding pine needles, leaves and other debris from engagement …

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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 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.
FiledJune 14, 1988
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300338 C
Classification (IPC)E04D13/04 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 14, 1988Patent grantedMay 12, 1992Term endedMay 12, 2009

Sources & verification

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