Paper magazine
CA 2125471 C · Owner: Noritsu Koki Co. Ltd. · Inventors: Oku, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paper magazine is proposed which is capable of feeding and rewinding a web of paper automatically without forming any indentation or causing meandering. A pair of press rollers and a paper detection roller are provided on a feed path extending from the core of a paper roll in the paper magazine case to the paper outlet. Also the cam plate and the engaging roller are provided to control the movement of the press rollers toward and away from each other according to the position of the paper detection roller. The transmission of driving force to the core of the paper roll and the press rollers is changed over according to the position of the paper detection roller. The press rollers are …
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 June 8, 1994 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2016.
- 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.