Granted Patent
Utility
US 4,738,892 · App. 06/781,025
Silica filler for epoxy encapsulants and epoxy encapsulants containing same
Inventor:
Levy A. Canova
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Sep 27, 1985
Inventor
Levy A. Canova
Assignee (at issue)
PCR, 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.