Granted Patent
Utility
US 4,604,469 · App. 06/734,001
Process for the resolution of pyrano[3,4-b]indole-1-acetic acids
Inventors:
Christopher A. Demerson, Leslie G. Humber
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: May 14, 1985
Inventors
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.