Bag and method of manufacturing the same
CA 1257569 A · Owner: Sengewald, Karl H. · Inventors: Sengewald, Karl H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bag for fluidic commodities is formed of a hose of thermoplastic film material and includes a body having side folds and formed by two opposing walls welded to each other at at least their upper ends. The bag has a filling opening and a loop-shaped gripping handle formed by two opposite strips cut out from the blank of the bag and welded to each other at the upper ends. A method of producing such bags includes steps for making the bag body and the gripping handle. MJS:V/fp
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 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 18, 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.