Granted Patent
Utility
US 4,992,581 · App. 07/283,675
Novel methods of manufacturing thromboxane A.sub.2 antagonists
Inventors:
Robert B. Garland, Masateru Miyano
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Dec 13, 1988
Inventors
Robert B. Garland
Masateru Miyano
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.