Method of packaging resiliently compressible articles
CA 2217645 C · Owner: Simmons Company · Inventors: Steed, C. Edward; Gladney, Ricky F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of packaging a resiliently compressible article (10) comprises the steps of inserting the article into a tube of deformable material (22) such that excess material is provided at the ends of the tube. A first end (24) of the tube is then sealed closed. Air is then evacuated from the tube through the second end thereby deforming the tube around the article and causing the article to compress. While a vacuum is maintained in the tube the second end , of the tube is sealed closed. A containment sleeve (26) is fitted over the sealed tube to maintain the article in a compressed state. When the article is unpackaged, the containment sleeve is reversed and the tube is allowed to …
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 August 14, 1995 and granted December 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2017.
- 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.