Facing for insulation and other applications
CA 2511794 C · Owner: Cohen, Lewis S. · Inventors: Van Beukering, Sebastianus Franciscus Maria; Cohen, Lewis S.; Wyer, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and material for covering exposed insulation surfaces to protect them from moisture and other environmental factors. In one embodiment the covering , includes a first, exposed layer of a metal-containing foil (12) a second , layer of a metal-containing foil (16) a layer of a polymer (14) disposed , between the first two layers (12 16) of foil, a third layer of a metalcontaining foil (20), and a second layer of polymer (18) disposed between the second and third layers of foil (16, 20). A layer of a pressure sensitive adhesive (22) may be applied to one of the exposed layers of foil (20). The pressure sensitive adhesive layer (22) is covered with a release liner (24) prior to …
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 December 23, 2003 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2025.
- 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.