Means for prolonging the life of cut flowers
CA 1314722 C · Owner: Zetterquist, Lars · Inventors: Zetterquist, Lars
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A means for keeping fresh cut flowers placed in water which is, in the form of a label (1) applicable to one or more stalks of the cut flowers. The label comprises a water insoluble carrier layer (2) a coat (4) applied to the same which comprises an active material and a barrier layer (5) for water applied to this coat (4). The active material comprises at least one active substance which sets free bactericidal and/or bacterial inhibiting agent in the presence of water. In accordance with the invention the barrier layer in cooperation with the carrier layer regulates the size of the total contact surface of the water with the active material and consequently the release time for the active …
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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 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 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.