Article carrier with cushioned panel
CA 2080702 C · Owner: Manville Forest Products Corporation · Inventors: Cooper, Leonard Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paperboard carrier for beverage cans the bottoms of which tend to be deformed when subjected to sharp blows. The panel adjacent the can bottoms is formed of two sheets (30 44) in face-to-face , engagement. The interior face of the inner sheet (44) contains a number of raised embossed portions (54) against which the can bottoms engage. The embossed portions, which may be comprised of spaced embossed protrusions of circular or other shape effectively increase the cushioning effect of the sheet and in conjunction with the other sheet of the panel protect the can bottom , against damage. The embossed portions (54) are arranged so as to contact the circumferential rims normally provided at …
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 March 21, 1991 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 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.
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.