Expired Canadian patentCanada
Combinations of active ingredients for protecting animal skins and leather
CA 2422582 C · Owner: Rother, Heinz-Joachim · Inventors: Kugler, Martin; Rother, Heinz-Joachim; Rehbein, Hartmut
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 the use of combinations of active ingredients containing phenolic and fungicidal active ingredients, for preserving animal skins and leather.
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 September 7, 2001 and granted November 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 2001
GrantedNovember 29, 2011
Term endedSeptember 7, 2021
Patent numberCA 2422582 C
Classification (IPC)A01N43/78 +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.