Granted Patent
Utility
US 4,388,217 · App. 06/304,773
Process for the recovery of catalyst values
Inventors:
Robert Thomas Hembre, Steven Leroy Cook
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Sep 23, 1981
Inventors
Robert Thomas Hembre
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.