Building insulation
CA 2067683 F · Owner: Energie Innovation Vaidya-Baljak Inc. · Inventors: Baljak, Milan; Vaidya, Viwek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An insulated hockey rink having an ice surface covered by a building with walls and a roof. Both the walls and roof are covered on the inside with a flexible insulating material having a central section composed of one or more layers of air-bubble cushioning material. A layer of aluminum foil is extruded onto each side of the central section. The insulating material has the ability to withstand, with little or no damage the impact of a, hockey puck shot off the ice. The invention also covers a method of installing the insulation.
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 April 30, 1992 and granted March 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2014.
- 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.