Tear tie bag
CA 1056348 A · Owner: Wright, Charles E. · Inventors: Wright, Charles E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bag closure is provided which comprises a series of continuous, divisable closure elements capable of being automatically applied by machine. The closure itself has novel features in that lateral tabs serve to reinforce a bendable element which permits reclosure. In an alternate embodiment a tear element which, extends only part of the way along a closure is provided to permit the provision of a pour spout for granular materials and the like. - 1 -
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 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
- 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.