Expired Canadian patentCanada
Releasable polymeric conjugates based on aliphatic biodegradable linkers
CA 2526007 C · Owner: Greenwald, Richard B. · Inventors: Zhao, Hong; Greenwald, Richard B.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Activated polymeric bicine derivatives such as Formula (I) as well as , conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.
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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
- Filed August 13, 2003 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 13, 2003
GrantedJuly 16, 2013
Term endedAugust 13, 2023
Patent numberCA 2526007 C
Classification (IPC)C08G65/33 +2 more
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.