Pack comprising an outer rigid envelope and an inner flexible envelope
CA 1263322 C · Owner: Societe Des Produits Nestle S.A. · Inventors: Bohlen, Dietrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pack comprising an outer rigid envelope and an inner flexible envelope", The invention relates to a pack comprising a rigid outer envelope (1) with flaps (2,3,4,5) a flexible inner, envelope (6) and a means (7) for immobilizing the flexible inner envelope in relation to the outer envelope. The immobilization means extends over one face of the outer envelope and projects beyond each side of said face by a distance substantially equal to or shorter than the length of the flap, is designed to form an opening opposite a cut-out or a corresponding cutting line (8) of said face and is fixed at (11) substantially along said opening to the flexible inner envelope forming a tamper-proof membrane …
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
- Granted November 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 28, 2006.
- 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.