Cell cultivation of lichens
CA 1256816 A · Owner: Nippon Paint Co. Ltd. · Inventors: Yamamoto, Yoshikazu; Mizuguchi, Ryuzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The growth of lichenous fungal and/or algal cells can be attained within a short period of time by cultivating said cells in a culture medium containing at least one member selected from sugars, amino acids, natural extracts and agar in certain concentrations and/or at least one plant hormone in a certain concentration.
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 July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
- 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.