Closure for the fluid-tight closing of bags, thin-walled tubes and the like
CA 1318772 C · Owner: Folkmar, Jan · Inventors: Folkmar, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closure for a bag (not shown) such as a plastic, bag for freezing shaped lumps of ice for cooling drinks consists of a channel member adapted to receive an insertion member. Before the insertion member is pressed into the channel member, the end of the bag (not shown) is inserted between the two, being closed in a fluid-tight manner when the two members, in the example shown interconnected by a hinge, are pressed together. The closure makes it possible to close bags for freezing ice lumps in a fluid-tight manner, allowing the bags to lie down in a deep-freeze cabinet without leaking and also making it easier to open the bags than when these are closed by means of knots or the like.
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 June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- 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.