Expired Canadian patentCanada
Multi-roll web support arrangement
CA 1293597 C · Owner: E. I. Du Pont De Nemours And Company · Inventors: Valentini, Jose E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A coated web drive uses a cluster of support and blotting rollers, the latter being switch to contact the web and dry wet portions of the web which typically occur at splices.
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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
- 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 21, 1987
GrantedDecember 31, 1991
Term endedDecember 31, 2008
Patent numberCA 1293597 C
Classification (IPC)B05C1/04 +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.