Flat packing and method for the production thereof
CA 2450697 A1 · Owner: Schultz, Frank · Inventors: Schultz, Frank; Liedtke, Ulrich; Klenk, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a flat packing consisting of at least one nonwoven material layer, which is comprised of a textile construction made of asbestosfree fibers or of fiber blends and which is impregnated with a polymer. The sealing element (1) is at least comprised of a nonwoven material that is impregnated with polytetrafluoroethylene.
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 February 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2024.
- 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.