Granted Patent
Utility
US 4,323,507 · App. 06/168,867
Valproate conjugation using dicarbonyls
Inventors:
Danton K. Leung, Prithipal Singh
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Jul 14, 1980
Inventors
Danton K. Leung
Prithipal Singh
Assignee (at issue)
Syva Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.