Expired Canadian patentCanada
Group transfer polymerization catalyzed by mercury compounds
CA 1290885 C · Owner: Dicker, Ira B. · Inventors: Dicker, Ira B.
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Open the CIPO recordAbstract From the Canadian patent
TITLE, Group Transfer Polymerization, Catalyzed by Mercury Compounds ABSTRACT OF THE DISCLOSURE, Mercury compounds which are useful as co-catalysts in Group Transfer Polymerization are disclosed.
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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
- Granted October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 24, 1987
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290885 C
Classification (IPC)B65D23/00 +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.