Expired Canadian patentCanada
Plant growth medium and the use thereof
CA 1322666 C · Owner: Effem Gmbh · Inventors: Czempik, Klaus; Tonne, Jurgen; Lang, Rudiger
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a plant growing medium having a content of 20 to 100% of a granular mixture of foamed clay or weakly fired ceramic materials and its, application.
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 October 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 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.
FiledAugust 16, 1988
GrantedOctober 5, 1993
Term endedOctober 5, 2010
Patent numberCA 1322666 C
Classification (IPC)C05D3/02 +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.