Granted Patent
Utility
US 5,525,643 · App. 08/493,153
Thermally insulative, microporous xerogels and aerogels
Inventors:
M. Antonieta Macip-Boulis, Aheed G. Boulis
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Jul 28, 1995
Inventors
M. Antonieta Macip-Boulis
Aheed G. Boulis
Assignee (at issue)
ARMSTRONG WORLD 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.