Expired Canadian patentCanada
Herbicidal compositions and methods of preparing and using the same
CA 2075003 C · Owner: Kassebaum, James Web · Inventors: Kassebaum, James Web
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A herbicide composition is provided comprising a glyphosate herbicide, an activity enhancing alkyl polyglycoside surfactant, and a foam moderating acetylenic diol.
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 July 30, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 30, 1992
GrantedJanuary 19, 1999
Term endedJuly 30, 2012
Patent numberCA 2075003 C
Classification (IPC)A01N57/20
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.