Bioabsorbable poly(esteramide) and method for making same
CA 2125168 A1 · Owner: Barrows, Thomas H. · Inventors: Barrows, Thomas H.; Truong, Myhanh T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Poly(esteramides) with superior potential for use in bioabsorbable devices. The poly(esteramides) have a plurality of units having general formula (I), wherein: a) R is selected from the group consisting of linear or branched alkylenes having from 2 to 25 carbon atoms; and b) n has an average value between about 20 and about 1000. Also, a method for making such poly(esteramides).
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 1, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2014.
- 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.