Canadian application, no grantCanada
Dental material containing a component which contracts during thermal treatment
CA 2355581 A1 · Owner: Ivoclar Vivadent Ag · Inventors: Zanghellini, Gerhard; Hagenbuch, Konrad
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 invention relates to dental materials which contain filler and a polymerizable matrix and are characterized in that they additionally have a component which contracts during thermal treatment.
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 August 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 20, 2001
GrantedNo grant recorded
Term endedAugust 20, 2021
Patent numberCA 2355581 A1
Classification (IPC)A61K6/08 +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.