Granted Patent
Utility
US 4,861,871 · App. 07/180,074
Process for cyclo-dehydrating ketoses, obtained anhydrides and their use as food additives
Inventors:
Jacques Defaye, Andree Gadelle, Christian Pedersen
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Apr 11, 1988
Inventors
Jacques Defaye
Andree Gadelle
Christian Pedersen
Assignee (at issue)
Beghin-Say, S.A.
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.