Sheet stack and dispenser package therefor
CA 2097289 C · Owner: Samuelson, Bruce E. · Inventors: Blackwell, Elmer; Samuelson, Bruce E.; Emmel, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stack (10) of individual pre-cut sheets (11) and a dispenser for those sheets are disclosed. The dispenser (20) affords reciprocating movement of the stack within the dispenser to afford individual dispensing of the sheets. Optionally, the dispenser (20) may be mounted on the wrist of a user to afford convenient dispensing.
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 November 1, 1991 and granted October 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2013.
- 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.