Granted Patent
Utility
US 4,804,775 · App. 06/905,412
Process for reducing residual monomers in low viscosity polymer-polyols
Inventors:
Vasanth R. Kamath, Leonard H. Palys
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Sep 9, 1986
Inventors
Vasanth R. Kamath
Leonard H. Palys
Assignee (at issue)
Pennwalt 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.