Collagen material and its production process
CA 2334664 A1 · Owner: Tapic International Co. Ltd. · Inventors: Shimizu, Yasuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A collagen material which has such physical properties as enabling suture while maintaining the biochemical characteristics inherent to collagen and can sustain its shape over a certain period of time after the application to a living body; and materials for medical use based thereon for example, artificial nerve tubes, artificial spinal cords artificial gullets, artificial tracheae artificial blood vessels, artificial valves artificial , membranes for medical use such as artificial scleromeninx artificial , ligaments, artificial tendons surgical suture threads, surgical loading materials, surgical reinforcing materials wound protectors, artificial skin , and artificial cornea. The …
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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
- Filed June 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2021.
- 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.