Expired Canadian patentCanada
Insect bait station
CA 2082956 C · Owner: Gehret, Michael J. · Inventors: Gehret, Michael J.; Chang, Frank N.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An insect bait station (10) comprising a hydrated macrogel layer (13) containing at least one species of entomopathogen and a hydrated water retentive compound layer (18) which acts as a waterreservoir For the entomopathogen.
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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
- Filed May 10, 1991 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 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.
FiledMay 10, 1991
GrantedJuly 31, 2001
Term endedMay 10, 2011
Patent numberCA 2082956 C
Classification (IPC)A01M1/20 +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.