Granted Patent
Utility
US 5,965,894 · App. 08/982,880
Method of operating a particle-optical apparatus
Inventors:
Marcellinus P. C. M. Krijn, Alexander Henstra
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Dec 2, 1997
Inventors
Marcellinus P. C. M. Krijn
Alexander Henstra
Assignee (at issue)
U.S. Philips 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.