Granted Patent
Utility
US 5,359,090 · App. 08/174,999
Alkoxymethylation of pyrroles
Inventors:
Robert F. Doehner, Jr., Jerry M. Barton
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: Dec 29, 1993
Inventors
Robert F. Doehner, Jr.
Jerry M. Barton
Assignee (at issue)
American Cyanamid 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.