Granted Patent
Utility
US 4,584,325 · App. 06/727,778
Modified aliphatic polyurethane polymers and method of preparing and using same
Inventor:
Stuart B. Smith
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Apr 26, 1985
Inventor
Stuart B. Smith
Assignee (at issue)
Thermocell Development, Ltd.
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.