Granted Patent
Utility
US 5,032,224 · App. 07/328,678
Method of producing pulp
Inventor:
MADHU AHLUWALIA
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Mar 27, 1989
Inventor
MADHU AHLUWALIA
Assignee (at issue)
Exxon Chemical Patents, Inc.
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.