Protective covers with impenetrable seams
CA 2210460 C · Owner: W.L. Gore & Associates, Inc. · Inventors: Masley, Francis J.; Goodwin, Brent I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is an improved protective cover for use in protecting a wearer against liquid contact even under highly demanding conditions. The present invention identifies previously ignored voids in seams as a chief cause of failure in protective garments and other covers in shielding against air liquid or virus penetration over an extended period of time. By sealing the seams with adhesive so as to fully encapsulate fibers therein and reduce void size to less than 10 microns the risk leakage through the cover is dramatically reduced.
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 27, 1996 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2018.
- 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.