Microporous multi-layer bonded fabric for medical use and methods for its manufacture
CA 1256008 A · Owner: Firma Carl Freudenberg · Inventors: Groitzsch, Dieter; Fahrbach, Erich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drapable microporous multi-layer bonded fabric designated for medical applications, especially for use in operation rooms which contains a, microfibre centre layer of hydrophobic fibres. This is covered on both sides by optionally non-woven laminates bonded together with a bonding agent. All layers are permanently secured together by means of impressing an elastically hydrophobic bonding agent. In this manner the bonding paste penetrates in a, rod-like fashion the entire cross-section of the multi-layer construction. Also described is a process for the production of the multi-layer bonded fabric consisting of arranging a microfibre layer on top of a reinforcing material of non-woven …
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.