Combined insulation and convection construction for handwear
CA 1282553 C · Owner: Brown, Roger · Inventors: Brown, Roger; Giese, Erik O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An insulated handwear construction which has an outer shell, an inner lining and an insulation material having thermal convection passages therein positioned between the shell and inner lining. The insulation material connects to a source of heat located on either the palm side or back side of the handwear construction and extends over finger and thumb portions to transfer heat from the heat source to the finger and thumb tips of a wearer.
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
- Granted April 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 2008.
- 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.