Method of using barrier material and system
CA 2259844 A1 · Owner: Rexroad, John · Inventors: Rexroad, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention resides in a method of providing a barrier in an environment comprising the steps of providing a structural member which is part of the environment; providing a flexible foam coated fine mesh material capable of being folded on itself and providing said mesh material with a means for securing said mesh material to a structural member in said environment and securing said mesh material through said means to said structural member to provide a barrier between one environment and another.
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 January 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2021.
- 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.