Annular seal
CA 2276236 C · Owner: Trogisch, Gunter · Inventors: Trogisch, Gunter; Schafer, Peter; Loll, Achim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An annular seal for insertion into the seal gap between a housing and a housing, cover includes a soft, elastic seal member as well as a flexible circuit , board, transversely extending through the seal member whereby the seal member and , the, flexible circuit board are stiffened within the seal gap by a stiffening element. The, stiffening element has a modulus of elasticity and a thrust modulus which is higher, than the respectively corresponding value of the circuit board. The circuit board does, not noticeably extend beyond the three-dimensional extent of the seal gap. The annular seal has a reduced weight, allows a better use of the housing and is , more, easily installed.
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 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term 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.