Method of preparing mushroom growing supplements from corn gluten meal
CA 1317780 C · Owner: Pratt, George W. · Inventors: Tackaberry, Duane O.; Pratt, George W.; Caton, Dennis W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mushroom growing supplement is prepared from acidic corn gluten meal by mixing with aqueous formaldehyde while maintaining the meal in free-flowing condition. The treated meal is then packaged without heating or drying and is ready for use by mushroom growers.
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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 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.