Composition of matter and process
CA 1067899 A · Owner: Upjohn Company (The) · Inventors: Magerlein, Barney J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
6-O- and 3'-O-D-glycosyl analogs of neamine 6-O-, and 3'-O-D-glycosyl ortho esters of neamine novel, aminoglycoside antibiotics, and novel intermediates are prepared by a new chemical process. The compounds have utility as antibacterial agents or as intermediates to make antibacterially-active compounds. -1-
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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.