Granted Patent
Utility
US 5,902,636 · App. 08/953,263
Method for chemical surface modification of fumed silica particles
Inventors:
Alexis Grabbe, Terry Arthur Michalske, William Larry Smith
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Oct 17, 1997
Inventors
Alexis Grabbe
Terry Arthur Michalske
William Larry Smith
Assignee (at issue)
LUCENT TECHNOLOGIES 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.