Granted Patent
Utility
US 4,533,729 · App. 06/551,396
Process for the preparation of polycarbonate polyols
Inventors:
Gordon C. Newland, William R. Darnell
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Nov 14, 1983
Inventors
Gordon C. Newland
William R. Darnell
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.