Composition having low compression set
CA 2198438 A1 · Owner: Ngoc, Hung Dang · Inventors: Ngoc, Hung Dang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Seals for automotive body applications (such as windows, hoods, trunks and doors) and building applications (such as, window glazing gaskets and weather strips) should be dimensional stable provide, low compression set and offer outstanding sealing characteristics over a broad temperature range. They must be capable of sealing out noise, wind and water while providing long-term ultraviolet light resistance. This invention discloses a polymeric composition having excellent characteristics for seals and gaskets including dimensional stability low, compression set and outstanding sealing characteristics, said polymeric composition being comprised of (1) a rubbery polymer which is comprised of …
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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 February 25, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.