Granted Patent
Utility
US 4,751,307 · App. 07/020,064
Wittig-reaction processes
Inventor:
Carl White
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Feb 27, 1987
Inventor
Carl White
Assignee (at issue)
MALLINCKRODT LLC
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.