Surgical filament
CA 2031774 C · Owner: Mitsui Toatsu Chemicals, Inc. · Inventors: Ohtaguro, Masami; Iimuro, Shigeru; Shinoda, Hosei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical filament is provided herein which has a surface coated with at least, one N-long chain monoacylated basic amino acid having an aliphatic acyl group of, from 6 to 22 carbon atoms, either in admixture with a bio-absorbable polymer or, without such bio-absorbable polymer. Such surgical filament has improved surface-slipping, characteristics, e.g. the ability to be passed through tissue and having tie down properties.
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 December 7, 1990 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.
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.