Granted Patent
Utility
US 5,425,930 · App. 08/123,283
Process for forming large silica spheres by low temperature nucleation
Inventor:
David J. Anderson
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Sep 17, 1993
Inventor
David J. Anderson
Assignee (at issue)
AlliedSignal, 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.