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Expired Canadian patentCanada

Carrier stock with integral handles

CA 2039993 C · Owner: Olsen, Robert · Inventors: Marco, Leslie S.; 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, and severable into individual carriers with integral handles. For each carrier integrally, joined band segments define container-receiving apertures. Moreover, an integral handle is joined at its ends respectively to middle portions of two outer segments, which are joined to one cross segment at a node. Stresses are distributed from each end of the handle, through the outer segment having such end joined to a middle portion thereof, to two cross segments. Perforated lines divide alternate cross segments into half segments and facilitate severance of such stock to form the individual …

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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 8, 1991 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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 8, 1991
GrantedSeptember 22, 1998
Term endedApril 8, 2011
Patent numberCA 2039993 C
Classification (IPC)B65D71/02 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 8, 1991Patent grantedSep 22, 1998Term endedApril 8, 2011

Sources & verification

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