Granted Patent
Utility
US 3,968,089 · App. 05/524,567
Polymer-prepolymer composition prepared by polymerizing an ethylenically unsaturated monomer in the presence of an isocyanate-terminated prepolymer
Inventors:
Michael Cuscurida, George P. Speranza
Patented Case
View Patent ↗
Granted: Jul 6, 1976
Filed: Nov 18, 1974
Inventors
Michael Cuscurida
George P. Speranza
Assignee (at issue)
Jefferson Chemical Company, 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.