Self extinguishing composite primary structure
CA 2557594 C · Owner: Sikorsky Airfcraft Corporation · Inventors: Giampapa, James S.; Napier, Lauren Robert; Fabian, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A helicopter (10) is provided with one or more components formed from a self extinguishing composite primary structure material (38) to provide increased passenger safety. The self extinguishing composite primary structure material has a core (40) formed from a fire retardant material which core has a first , surface (42) and a second surface (44) and at least one ply (46) of a , structural graphite prepreg material bonded to each of the first surface and the second surface.
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 February 16, 2005 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.