Granted Patent
Utility
US 4,468,356 · App. 06/436,540
Diketene chlorination method
Inventors:
Dale E. Van Sickle, Gordon C. Newland, Jeffrey J. Siirola, Steven Leroy Cook
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Oct 25, 1982
Inventors
Dale E. Van Sickle
Gordon C. Newland
Jeffrey J. Siirola
Steven Leroy Cook
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.