Granted Patent
Utility
US 5,898,009 · App. 08/968,959
High density agglomerated boron nitride particles
Inventors:
Gregory W. Shaffer, Richard F. Hill
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Nov 12, 1997
Inventors
Gregory W. Shaffer
Richard F. Hill
Assignee (at issue)
ADVANCED CERAMIC X CORPORATION
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.