In-mold label film and method
CA 2117057 C · Owner: Lloyd, Ronald V. · Inventors: Baid, Kushalkumar M.; Rackovan, Mitchell J.; Popely, Gerald G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oriented polymeric in-mold label film (10) comprises a hot-stretched annealed, linerless self-wound film lamina and has face layer (12) for printing and a base layer (14) which includes a heat-activatable adhesive. The heat-shrinkability of the film (10) is balanced thickness-wise to minimize curl and allow the film (10) to be printed in conventional label-printing presses. An antistat may be included only in the charge for the base layer (14) which includes the heat-activatable adhesive. In the manufacture of labelled blow-molded containers sheets and labels formed from the film may be handled at high speeds while maintaining accurate registration and dimensional and positional …
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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 September 9, 1992 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2014.
- 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.