Dust-free quinoxaline 1,4-di-n-oxides
CA 1249522 A · Owner: Bayer Aktiengesellschaft · Inventors: Voege, Herbert; Hammen Hans W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dust-free quinoxaline 1,4-di-N-oxides, A B S T R A C T Quinoxaline 1,4-di-N-oxides are rendered non-dusting by adjusting their water content to about 3-20% by weight and adding thereto about 2-20% by weight of a flow-regulating agent such as silica. The compositions can be added to animal feeds. Le A 22 649-US
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 January 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 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.