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Expired Canadian patentCanada

Carrier stock for side wall application

CA 2039754 C · Owner: Olsen, Robert · Inventors: Olsen, Robert

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

Carrier stock formed from a single sheet of resilient polymeric material, such as low density polyethylene, for machine application to side walls of substantially identical containers. Integrally joined band segments defining separate apertures to receive the individual containers include longitudinal cross, and, diagonal segments. The diagonal segments are joined at generally X-shaped junctions. From each junction the, generally oblique segments of a first pair are continuously curved toward the nearer edge of such stock and the diagonal segments of a second pair are substantially straight and tend toward the other edge of such stock. Each diagonal segment of the first pair at each …

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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 April 4, 1991 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 4, 1991
GrantedSeptember 22, 1998
Term endedApril 4, 2011
Patent numberCA 2039754 C
Classification (IPC)B65D71/00 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 4, 1991Patent grantedSep 22, 1998Term endedApril 4, 2011

Sources & verification

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