Propanol derivatives
CA 1292002 C · Owner: Frejd, Torbjorn · Inventors: Magnusson, Hans Goran; Frejd, Torbjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Propanol derivatives of the formula I I, wherein X is a leaving group;, R1 is H or a protecting group; and R2 is H, and R3 is a group -CH2Y wherein Y is a leaving group; or, R2 and R3 together form =CH2. The propanol derivatives of the formula I are useful as mutifunctional alkylating agents.
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 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- 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.