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Expired Canadian patentCanada

Camera system

CA 1180587 A · Owner: National School Studios, Inc. · Inventors: Hopson, Talmadge W.

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

Abstract, A microprocessor controlled camera system for exposing film with a photographic subject a field of bar, code data relevant to the subject and a field of data taken from a written card. The camera system includes an elevator assembly for raising and lowering the camera in response to a control actuator and a fixed aperture dual zoom lens system for framing the subject under control of the control actuator. A flash control system utilizes reflected light from the flashtube to indicate the amount of additional light needed on the subject and commands additional energy storage capacitors to be discharged through the flashtube to increase the subject illumination to a desired level.

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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 January 8, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 30, 1982
GrantedJanuary 8, 1985
Term endedJanuary 8, 2002
Patent numberCA 1180587 A
Classification (IPC)G03B17/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 30, 1982Patent grantedJan 8, 1985Term endedJan 8, 2002

Sources & verification

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