Granted Patent
Utility
US 5,482,942 · App. 08/267,691
(3,4-dioxocyclobuten-1-yl)chromene, indene, and dihydronaphthalenone derivatives as smooth muscle relaxants
Inventors:
Richard Soll, Paul J. Dollings
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Jun 28, 1994
Inventors
Richard Soll
Paul J. Dollings
Assignee (at issue)
Amerimas Home Products, Inc.
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.