Sealing cylinder
CA 2325182 A1 · Owner: Hilti Aktiengesellschaft · Inventors: Munzenberger, Herbert; Milhes, Jean-Louis; Andresen, Arndt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fire-protection sleeve for a pipe, cable and the like (T) comprises an axially, extending tubular metal housing which has a radially outwardly projecting connecting flange at one end. An end section at the one end of the housing, contains a heat-intumescing composition formed on the inner wall of the , housing and surrounds the axis of an axially extending opening in the tubular housing for the, pipe, cable and the like (T). At the end section of the housing having the heat-, intumescing composition, metallic lamellas are arranged which extend radially, inwardly into the opening of the housing for the pipe cable or the like (T) , and are, flexible in the axial direction of the opening.
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 November 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2022.
- 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.