Expired Canadian patentCanada
High strength chitosan fibers and fabrics thereof
CA 1324714 C · Owner: Pelosi, Lorenzo Fred · Inventors: Delucca, George Vincent; O'Brien, John Philip; Pelosi, Lorenzo Fred
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High strength chitosan fibers from chitin and chitosan derivatives and the process for making these fibers are disclosed.
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 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 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.
FiledFebruary 8, 1989
GrantedNovember 30, 1993
Term endedNovember 30, 2010
Patent numberCA 1324714 C
Classification (IPC)D01D5/06 +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.