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Expired Canadian patentCanada

Eaves trough

CA 1270110 C · Owner: Atchison, Samuel B. · Inventors: Atchison, Samuel B.

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 improvement to the front face of an eaves trough is disclosed, to thereby eliminate smudging streaking, and the, like on the front face of the installed eaves trough. The improvement retards formation of condensation on the front face and prevents an overflow of run-off water from flowing down the front face of the eaves trough. The improvement is achieved by means of an overhang at the uppermost front edge of the eaves trough, the overhang having an upper surface over which excess water from the eaves trough can flow and a lower surface adjacent the front face of the eaves trough which is oriented, so that water flowing over the upper surface does not flow across it.

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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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 12, 1989
GrantedJune 12, 1990
Term endedJune 12, 2007
Patent numberCA 1270110 C
Classification (IPC)E04D13/06

Timeline

Timeline From CIPO dates

199019921994199619982000200220042006Application filedMay 12, 1989Patent grantedJune 12, 1990Term endedJune 12, 2007

Sources & verification

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