Film winding apparatus
CA 2188719 C · Owner: Yamaguchi, Takuji · Inventors: Yamaguchi, Takuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filmwinding apparatus forwinding a film into a cartridge includes a film winding mechanism provided in an apparatus housing for turning a spool housed in the cartridge to wind the film around the spool. The film is inserted through a film inlet located on one side of the apparatus housing and fed toward the film winder. The cartridge loaded on a cartridge mount provided on another side of the apparatus housing is conveyed up to the film winding mechanism, where the cartridge is set in a film loading position. The film winding apparatus thus constructed offers easy operation without any special adjustment or treatment of the film or cartridge, yet featuring single-unit construction and …
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 October 24, 1996 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 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.