Expired Canadian patentCanada
Marine fishery thread articles
CA 2044512 C · Owner: Suzuki, Masakazu · Inventors: Kurishita, Akio; Nogami, Isao; Suzuki, Masakazu
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 provides a marine fishery article of threads which is made of threads consisting essentially of polycaprolactone represented by the formula wherein n is 300 to 2,000.
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 June 13, 1991 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 13, 1991
GrantedNovember 26, 2002
Term endedJune 13, 2011
Patent numberCA 2044512 C
Classification (IPC)D01F6/16 +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.