Resealable enclosure
CA 2019189 C · Owner: Georgia-Pacific Consumer Products Lp · Inventors: Prascak, Brian; Erickson, Todd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resealable packaging enclosure is disclosed which includes a tear path defining an aperture through which products may be extracted from the enclosure, and a resealable closure tab which extends across the tear path. The tab has a first end secured to a top panel of the enclosure at one side of the tear path and a second end having an adhesive coating for releasably attaching to the top panel on the other side of the tear path. The tear path includes weaker and stronger portions. The stronger portion is more resistant than the weaker portion to forces tending to separate the material comprising the enclosure along the tear path. Thus, the tear path has a variable resistance along its …
Read the whole patent
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 June 18, 1990 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
- 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.