Granted Patent
Utility
US 4,242,249 · App. 06/026,576
Polymer/polyols via non-aqueous dispersion stabilizers
Inventors:
Russell Van Cleve, George H. Armstrong, Donald W. Simroth
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Apr 3, 1979
Inventors
Russell Van Cleve
George H. Armstrong
Donald W. Simroth
Assignee (at issue)
Union Carbide Corporation
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.