Granted Patent
Utility
US 4,568,702 · App. 06/722,913
Method for the preparation of semi-rigid polyurethane modified polyurea foam compositions
Inventor:
Rocco L. Mascioli
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Apr 15, 1985
Inventor
Rocco L. Mascioli
Assignee (at issue)
Atlantic Richfield 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.