Granted Patent
Utility
US 4,775,690 · App. 07/002,825
Substituted 1,3,4,9-tetrahydropyrano(3,4-b)indole-1-acetic acids
Inventors:
Alan H. Katz, Christopher A. Demerson, Leslie G. Humber
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Jan 13, 1987
Inventors
Alan H. Katz
Christopher A. Demerson
Leslie G. Humber
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.