Photographic film processor with resilient fibrous-covered rollers
CA 1048326 A · Owner: Kreonite · Inventors: Krehbiel, Vivian D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for transporting photographic film in a chemical solution to process the film has a pair of parallel positioned and spaced rollers in contacting relation. A woven stocking of resilient fibrous material covers one of the rollers. The rollers are fixedly positioned so that the stocking covered roller in operation is depressed along the line of contact with its companion roller. This results in a scrubbing action taking place on the film passing between the rollers.
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 February 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 1996.
- 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.