Granted Patent
Utility
US 5,457,023 · App. 08/170,562
Non-ionic surface active compounds
Inventors:
Catherine B. Briggs, Ian M. Newington, Alan R. Pitt
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Dec 20, 1993
Inventors
Catherine B. Briggs
Ian M. Newington
Alan R. Pitt
Assignee (at issue)
EASTMAN KODAK COMPANY
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.