Expired Canadian patentCanada
Napkins
CA 2434477 C · Owner: Wong, Foo Tai · Inventors: Wong, Foo Tai
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pre-folded and pre-printed paper napkin capable of being stacked with other such napkins for package and storage, the napkin being pre-printed such that the pre-folded napkin resembles a recognisable 3-dimensional object.
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 18, 2002 and granted April 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 2002
GrantedApril 26, 2011
Term endedJanuary 18, 2022
Patent numberCA 2434477 C
Classification (IPC)A47G11/00 +2 more
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.