Production of tea and the like bags
CA 1265735 C · Owner: Sweeney, Ronald M. · Inventors: Rimmer, James R.; Sweeney, Ronald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements relating to the production of tea and the like bags, The invention provides a machine for manufacturing and handling tea bags, wherein the tea bags are produced by laminating together two webs with individual quantities for tea therebetween. Two rows of tea bags formed in, the webs, and the tea in the bags is biased upwardly of the webs. This is followed by severing of the webs into two individual single tea bag row webs and this, is followed by transverse severing of the web to produce individual tea bags. The tea bags are held into magazines so as to form two stacks therein and stacks of tea bags are moved laterally of the magazine into the inserting device and the inserting …
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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 February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 2007.
- 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.