Granted Patent
Utility
US 4,312,844 · App. 06/210,508
Trimetaphosphate compounds of trivalent metals
Inventors:
James E. Neely, Jr., Charlene A. Falleroni, Annette Moff, Chia-Cheng Lin
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Nov 26, 1980
Inventors
James E. Neely, Jr.
Charlene A. Falleroni
Annette Moff
Chia-Cheng Lin
Assignee (at issue)
PPG Industries, 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.