Exhaust nozzle flap seal
CA 2034381 C · Owner: Lippmeier, William Charles · Inventors: Lippmeier, William Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exhaust nozzle flap seal includes a seal plate, a support member, and structure for joining the support member to the seal plate which is effective for allowing the seal plate to slide relative to the support member for accommodating differential thermal movement therebetween. In a preferred, exemplary embodiment, the exhaust nozzle flap seal is disposed in combination with a vectorable, axisymmetric variable, area exhaust nozzle and is also effective for accommodating twist of the flap seal when the exhaust nozzle is positioned for vectoring thrust.
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 January 17, 1991 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2013.
- 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.