Gasket with dynamic embossment
CA 2276072 A1 · Owner: Battistoni, Daniel C. · Inventors: Battistoni, Daniel C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite gasket includes a central core located between non-metallic outer facing, layers. Each non-metallic outer facing layer has an outer core adjacent the central core. The, outer cores can be either perforated or non-perforated. A bead is provided on the central core, to produce a resilient biasing force that urges the outer facing layers into contact with, respective mating surfaces to improve gasket sealing. The central core optionally has an, elastomeric coating to improve sealing between the central core and the outer cores to prevent, leakage between gasket layers.
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 June 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2021.
- 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.