Wrappable sleeve
CA 2276147 A1 · Owner: Gladfelter, Harry F. · Inventors: Gladfelter, Harry F.; Brushafer, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A split sleeve (11) for insulation of heat generating components such as an , exhaust gas recirculation device comprises an outer layer of knitted woven or braided glass fibre yarn (12). A first metal wire (14) skeleton or frame in the form of a continuous wire support for the outer layer (12) is bent in a first step with a series of reverse bends to form a comb-like structure and in a second step to a C-shaped cross-sectional configuration in which the wire defines a cavity and the wire bends define an opening (22) extending lengthwise of the cavity. A layer of heat insulating mineral paper (16) is spaced from the cover layer (12) by the metal wire (14) skeleton. The heat …
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 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2019.
- 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.