Expired Canadian patentCanada
Blend of cotton, nylon and heat-resistant fibers
CA 1317854 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Green, James Ralph
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Blend of Cotton, Nylon and Heat Resistant Fibers ABSTRACT, Heat resistant, durable woven fabrics are prepared with warp yarns comprising certain blends of cotton, nylon and heat resistant fibers. XXI-11
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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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 11, 1989
GrantedMay 18, 1993
Term endedMay 18, 2010
Patent numberCA 1317854 C
Classification (IPC)D04H1/42
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.