Moisture-permeable waterproof fabric
CA 1210684 A · Owner: Kanebo Ltd. · Inventors: Tanaka, Yutaka; Sato, Keishi; Kamiya, Toji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A moisture-permeable waterproof fabric is disclosed which comprises a polyamino acid modified polyurethane film having a thickness of from 2 to 20 microns and a fabric bonded on the polyurethane film by a polyurethane adhesive in an amount of at least 10 g/m . The polyamino acid modification ratio of the polyurethane film is within the range of from 2 to 20%. The total amount of the adhesive and the polyurethane film is not more than 50 g/m2.
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
- Granted September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
- 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.