Expired Canadian patentCanada
Archiving tool
CA 2255035 C · Owner: Chiang, Shirley S. · Inventors: Chiang, Shirley S.; Theivendra, Leonard W.; Chan, Victor Shih-Chuan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention discloses a system and method for archiving files in an archive file that, provides customized entry names for the archived files.
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 30, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 30, 1998
GrantedJanuary 29, 2002
Term endedNovember 30, 2018
Patent numberCA 2255035 C
Classification (IPC)G06F17/30 +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.