Granted Patent
Utility
US 4,736,029 · App. 06/844,520
Process for preparing 2-amino-6-chloropurine
Inventors:
Michael R. Harnden, Richard Jarvest
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Mar 21, 1986
Inventors
Michael R. Harnden
Richard Jarvest
Assignee (at issue)
Beecham Pharmaceuticals Limited
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.