Expired Canadian patentCanada
Insect repellents
CA 1196279 A · Owner: Bayer Aktiengesellschaft · Inventors: Finkel, Peter; Strickmann, Heribert; Charlet, Egbert
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to insect repellents containing N,N-diethyl-m-toluamide (DEET) as the repellant component and castor oil as the component which provides a prolongation of activity.
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
- Granted November 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1983
GrantedNovember 5, 1985
Term endedNovember 5, 2002
Patent numberCA 1196279 A
Classification (IPC)A01N37/18 +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.