Expired Canadian patentCanada
Composition and method for increasing brain tyrosine levels
CA 1202902 A · Owner: Massachusetts Institute Of Technology · Inventors: Wurtman, Richard J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition comprising tyrosine and a carbohydrate is administered in amount to increase brain tyrosine levels.
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 April 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 8, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 11, 1983
GrantedApril 8, 1986
Term endedApril 8, 2003
Patent numberCA 1202902 A
Classification (IPC)A61K31/70 +1 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.