Camera having tiltable photocell lens assembly
CA 1288626 C · Owner: Johnson, Bruce K. · Inventors: Johnson, Bruce K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: CAMERA HAVING TILTABLE PHOTOCELL LENS ASSEMBLY ABSTRACT OF THE DISCLOSURE, A photographic camera having an automatic exposure control circuit including a photocell lens assembly mounted for movement through an angle greater than ninety degrees, as the camera is rotated in either direction about its optical axis between a horizontally orientated. picture taking attitude and a vertically orientated picture taking attitude, so as to compensate for variations in scene illumination received by the photocell lens assembly in the three attitudes, i.e. one horizontal and two vertical.
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 September 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.