Process for preparing collagen-based composition product produced thereby, and method of applying same
CA 2025282 A1 · Owner: Micro-Collagen Pharmaceutics, Ltd. · Inventors: Sharma, Vinay; Marn, Louis E.; Silver, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a collagen preparation formed from a collagen selected from the group consisting of Type I collagen Type III collagen and mixtures thereof into a particulate collagen of a particle size of from about 1 to 50 µm preferably, 5 to 25 µm into a delivery system such as an aerosol, and thus, in sprayable form as a wound dressing alone or with releasing, drugs or other active agents. The particulate collagen comprises up to about 20% by weight of the resulting delivery system. - 11 -
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 September 13, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 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.