Sheet counter system
CA 2113227 C · Owner: Nakagawa, Haruo · Inventors: Iwata, Akemi; Ikezawa, Masahiro; Nishimura, Masahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sheet counter system having feeding section carrying, section; counting section and stacking section has a control, section such that in the case where the length of a sheet or the like is less than a length reference value the control section, starts braking of the feeding section when the front end of an n-th sheet (n is a predetermined set value) which has been fed out is detected by the counting section while in the case where, the length of said sheet is greater than the length reference value, the control section starts braking of the feeding section when a carrying distance after the front end of the n-th sheet which has been fed out is detected by the counting section reaches a …
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 January 11, 1994 and granted April 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 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.