Patent Yard Sign in
Expired Canadian patentCanada

Photographic cove

CA 1282104 C · Owner: Brown, Ronald J. · Inventors: Baillie-Hamilton, William J.; Brown, Ronald J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A photographic cove for use in photographic studios and the like comprises a plurality of portable pre-fabricated modular units (1) each having a front surface (2), which in some units is concave and mating, side surfaces (3). The units (1) are releasably secured together by means (7,8 or 10, 11). Means (5,14 or 20) support the assembled cove.

Read the whole patent

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 March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 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.
FiledMarch 6, 1987
GrantedMarch 26, 1991
Term endedMarch 26, 2008
Patent numberCA 1282104 C
Classification (IPC)G03B15/06

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 6, 1987Patent grantedMarch 26, 1991Term endedMarch 26, 2008

Sources & verification

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