Granted Patent
Utility
US 4,822,901 · App. 07/126,894
Carboxy-substituted organosilicon stabilizers for a silicate-containing antifreeze
Inventors:
Paul H. Mohr, Enrico J. Pepe
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Nov 30, 1987
Inventors
Paul H. Mohr
Enrico J. Pepe
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.