Granted Patent
Utility
US 4,338,230 · App. 06/276,272
Emulsifiable polyolefin waxes prepared by reacting pivalolactone and a polyolefin wax containing carboxyl groups
Inventor:
William A. Ames
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Jun 22, 1981
Inventor
William A. Ames
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.