Automatic film development apparatus
CA 2185968 C · Owner: Yamamoto, Takuya · Inventors: Arimoto, Keigo; Kojima, Masayuki; Yamamoto, Takuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic film development apparatus comprises a cartridge case for carrying a group of film cartridges loaded with undeveloped films; a feeder unit for storing a plurality of the cartridge cases and delivering them one by one; an unloading station for unloading a sheet of undeveloped film from its film cartridge in the cartridge case; a rewinding station for rewinding the undeveloped film sheet into a takeup cartridge; a splicer unit for joining one end of the undeveloped film sheet from the takeup cartridge with a short film leader for guiding the film sheet; a film leader supply unit for feeding the short film leader one at the time; a development unit for developing the undeveloped …
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
- Filed September 19, 1996 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2018.
- 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.