Granted Patent
Utility
US 4,740,577 · App. 07/090,960
Energy polymerizable polyurethane precursors
Inventors:
Robert J. DeVoe, Doreen C. Lynch
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Aug 28, 1987
Inventors
Robert J. DeVoe
Doreen C. Lynch
Assignee (at issue)
Minnesota Mining and Manufacturing 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.