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Expired Canadian patentCanada

Improvements in or relating to seals

CA 2537964 C · Owner: Applied Design And Engineering Limited · Inventors: Wood, Ian David

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A storage compartment comprises a container defining an access aperture closable by a closure that can be sealed to the container around the aperture and that can be opened by relative movement between the container and the closure in a lateral direction with respect to the aperture the container , having a first sealing loop around the aperture and the closure having a second sealing loop co-operable by alignment with the first sealing loop to maintain a seal when the closure closes the aperture. The sealing loops are moved into and out of mutual alignment by said relative movement between the container and the closure and at least one of the sealing loops includes magnetic means …

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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 August 26, 2004 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 26, 2004
GrantedSeptember 10, 2013
Term endedAugust 26, 2024
Patent numberCA 2537964 C
Classification (IPC)F25D23/08 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 26, 2004Patent grantedSep 10, 2013Term endedAug 26, 2024

Sources & verification

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