Expired Canadian patentCanada
Method of controlling zebra mussels
CA 2034414 C · Owner: Fraleigh, Peter C. · Inventors: Lee, Harold H.; Lemma, Aklilu; Fraleigh, Peter C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Zebra mussels are controlled by contacting them with the active portion of a Phytolacca plant.
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 January 17, 1991 and granted May 27, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 17, 1991
GrantedMay 27, 1997
Term endedJanuary 17, 2011
Patent numberCA 2034414 C
Classification (IPC)A01N65/08 +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.