Granted Patent
Utility
US 5,254,541 · App. 07/793,059
(Quinolin-2-ylmethoxy)indole/cyclodextrin complex
Inventor:
Elizabeth Kwong
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Nov 15, 1991
Inventor
Elizabeth Kwong
Assignee (at issue)
Merck Frosst Canada Ltd.
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.