Expired Canadian patentCanada
Film seal for a container
CA 1324172 C · Owner: Diez, Donald E. · Inventors: Diez, Donald E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Tamper-resistant innerseals that bond firmly to the lips of lidded or capped plastic containers. The innerseals incorporate a metallic foil having a biaxially oriented polymeric film applied to one surface thereof and heat-sealed to the polymeric container lip.
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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
- Granted November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1986
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1324172 C
Classification (IPC)B65D53/04
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.