Expired Canadian patentCanada
Packaging of plant tissue
CA 1297072 C · Owner: W.R. Grace & Co.-Conn. · Inventors: Barmore, Charles R.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Plant tissue such as fresh herbs, is packaged by suspending the tissue between sheets having no more than about 90% vapor impermeable surface area, and affixing the ends of the sheets to a container or a gas, flushed overwrap material. 404/860905/1
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 29, 1988
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1297072 C
Classification (IPC)B65D81/00 +2 more
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.