Gaseous antimicrobial treatment of storage grains
CA 1136039 A · Owner: Pennwalt Corporation · Inventors: Vidal, Frederick D.; Jayaraman, Anantharaman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for treating storage grains to prevent microbial spoilage by treating the grain with gaseous sulphur dioxide in combination with a gas such as ammonia carbon dioxide, chlorine, or nitrogen, such that the total amount of gas is from 0.25 to 3.0 liters per kilogram of grain.
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 November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- 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.