Film transfer system
CA 2180708 C · Owner: Yamaji, Yoshiyuki · Inventors: Yamaji, Yoshiyuki; Miyamori, Takahisa; Miyawaki, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A film transfer apparatus comprises a cartridge set station; a spool rotating mechanism for rotating a spool in a cartridge; a process station for subjecting a film supplied from the cartridge to a desired process; a take-up means for taking up the film released from the process station for storage; a take-up means rotating mechanism for driving the take-up means; a film transfer path provide with a film transfer mechanism; a drive motor connected to the film transfer mechanism which in turn is linked to the spool and take-up means rotating mechanisms to transmit the rotation of the drive motor through the film transfer mechanism to the spool and take-up rotating mechanisms; a spool …
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 July 8, 1996 and granted February 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 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.