Logic system for photographic film strip handling apparatus
CA 1098199 A · Owner: Polaroid Corporation · Inventors: Scholz, Donald T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for processing and viewing cassette contained film strips automatically in response to the condition of a cassette containing the film strip in accordance with programmed operational modes determined by an electro-mechanical logic stem. The logic system enables the use of a single undirectional electric motor for driving all viewer apparatus components including a programming cam disc between "off" "project" and "process/rewind" positions. A power switch organization brings about energization of the motor upon cassette insertion as well as movement of the logic disc to the off position upon a combination of cassette ejection and rotation of the camming disc to the off position. …
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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 March 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 1998.
- 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.