Expired Canadian patentCanada
Apparatus useful in devices for controlling the thickness of coating applied to a substrate
CA 2012768 C · Owner: Euclid Tool & Machine Co. · Inventors: Seymour, Ronald P.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
What is disclosed is a coating machine for paper and like materials wherein the coating machine has as its novel feature a pneumatically controlled knife blade assembly which allows for the coating of thin, uniform coatings.
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 March 22, 1990 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2012.
- 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 22, 1990
GrantedApril 6, 1999
Term endedMarch 22, 2010
Patent numberCA 2012768 C
Classification (IPC)B05C11/04 +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.