Method for applying a foamed fiber insulation
CA 2109848 C · Owner: Sperber, Henry · Inventors: Sperber, Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foamed adhesive insulation (10), consisting of a mixture of a foamed adhesive material and a fibrous insulation material is provided which adheres to a desired surface (12) without the need for a retaining means to hold the mixture in place. While in the flowable state, the foamed fiber insulation can be molded to a desired shape and texture. The foamed fiber insulation adheres and can be applied to substantially any surface such as wood, metal, masonry, concrete or urethane, with virtually any , orientation. The compression and tensile strengths of the layer of foamed fibers insulation can be selected by adjusting the mixture of foamed adhesive material and insulation particles. The …
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 August 11, 1992 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.