Granted Patent
Utility
US 5,349,048 · App. 08/173,233
Preparation of polycarbonate products
Inventors:
William D. McGhee, Dennis P. Riley
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Dec 27, 1993
Inventors
William D. McGhee
Dennis P. Riley
Assignee (at issue)
Monsanto 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.