Granted Patent
Utility
US 5,206,419 · App. 07/840,541
3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate bis(acetoacetate)
Inventors:
J. Stewart Witzeman, W. Dell Nottingham
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Feb 25, 1992
Inventors
J. Stewart Witzeman
W. Dell Nottingham
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.