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Expired Canadian patentCanada

Stretch-tape wrapper with positive-braking action

CA 2048219 C · Owner: Ferber, Norman I. · Inventors: Ferber, Norman I.

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

The wrapper of the invention includes a roll of stretch-tape on a central core, in its basic form, with a single end extension. A cap is secured at the remote end of the extension and an, incompressible sheath encircles the extension to freely rotate when the wrapper is used with tape being drawn from off the roll. The cap is dimensioned to prevent the sheath from separating from the extension, and is grasped by the heel of the hand of the user to prevent rotation of the extension when the tape is stretched to, be broken from the roll. Because the cap is of greater dimension than the sheath, the wrapper can be hand-held and operated at any angle as the circumstances of use dictate. In a …

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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 July 31, 1991 and granted May 12, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 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.
FiledJuly 31, 1991
GrantedMay 12, 1998
Term endedJuly 31, 2011
Patent numberCA 2048219 C
Classification (IPC)B65H75/18

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 31, 1991Patent grantedMay 12, 1998Term endedJuly 31, 2011

Sources & verification

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