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Expired Canadian patentCanada

Splice joints for composite aircraft fuselages and other structures

CA 2583535 C · Owner: Stulc, Jeffrey F. · Inventors: Rolfes, Neal G.; Clapp, Brian C.; Stulc, Jeffrey F.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Structures and methods for joining composite fuselage sections and other panel assemblies together are disclosed herein. In one embodiment a shell structure , configured in accordance with the present invention includes a first panel portion (210a) positioned adjacent to a second panel portion (210b). The first panel portion (210a) can include a first stiffener (214a-214e) attached to a first composite skin (112a) , and the second panel portion (210b) can include a second stiffener (214i-214j) attached to a second composite skin (112b). The shell structure can further include a fitting (230) extending across a first edge region of the first panel portion (210a) and a second edge …

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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 September 14, 2005 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 14, 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.
FiledSeptember 14, 2005
GrantedMay 14, 2013
Term endedSeptember 14, 2025
Patent numberCA 2583535 C
Classification (IPC)B64C1/06 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 14, 2005Patent grantedMay 14, 2013Term endedSep 14, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.