Method and apparatus for compression packaging
CA 2074883 C · Owner: Novapak, Inc. · Inventors: Merry, Wayne Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method of compacting a sheet article, for example an article of underwear, to produce a stable, substantially rigid compacted article. This reduces space required for storage and distribution and facilitates packaging of the article. Compaction is effected by planing the article or a plurality of articles, in a mold cavity and, subjecting them to elevated pressure for a certain time. The pressure and time are selected to compact the article sufficiently for form the stable, rigid body but, simultaneously not being so great as to either damage the article or compact it so much that water or other liquid is required to recover the article from its compacted …
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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 29, 1992 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 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.