Expired Canadian patentCanada
Chemiluminescent solution based on substituted perylene
CA 2019152 C · Owner: American Cyanamid Company · Inventors: Van Moer, Andre; Ladyjensky, Jacques
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions adapted to be reacted with hydrogen peroxide to provide chemiluminescent light are disclosed wherein the fluoresces is a perylene derivative.
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 June 18, 1990 and granted October 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 18, 1990
GrantedOctober 2, 2001
Term endedJune 18, 2010
Patent numberCA 2019152 C
Classification (IPC)C09K11/07 +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.