Canadian application, no grantCanada
Complex microstructure film
CA 2490265 A1 · Owner: Graham, Paul D. · Inventors: Graham, Paul D.; Schulz, Mark F.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to articles comprising a film having a first major surface and a second major surface the first major surface comprising , primary microstructure elements and secondary microstructure elements.
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 May 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 2003
GrantedNo grant recorded
Term endedMay 16, 2023
Patent numberCA 2490265 A1
Classification (IPC)B41M5/00 +1 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.