Breachable seal
CA 2582547 C · Owner: Stellbrink, Joseph · Inventors: Stellbrink, Joseph; Lewey, William E.; Fradl, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment, a reservoir for holding a fluid includes a housing (28) defining an enclosed chamber (30), the housing (28) having a first opening (32) therein at one part of the chamber (30) and a second opening (34) therein at a second part of the chamber (30) above the first part of the chamber (30) a breachable seal (53, 96, 106, 114 or 126) sealing the second opening (34) and a circuitous tunnel (42) exposing the chamber (30) to the atmosphere through the second opening (34) if the seal (53 96, 106, 114 or 126) is , breached.
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 August 29, 2005 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 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.