Flat top end closure for liquid containers
CA 1285915 C · Owner: Pure-Pak, Inc. · Inventors: Walton, Janet L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, There is disclosed herein a flat top end closure for a liquid carrying container which, includes two oppositely disposed overlapped outer, closure panels, a folded over panel segment on one of them, and two oppositely disposed, fold-in panels one of which serves as the pour spout when opened. Each of the fold-in panels includes a plurality of score lines, permitting each of the fold-in panels to be folded into two four layer thick portions beneath the outer closure panels such that no raw edge is adjacent the liquid contents. First and second lift tabs are formed on the edges of one of the outer closure panels and the pour spout fold-in panel respectively. Diagonal opening-assist …
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 July 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2008.
- 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.