Granted Patent
Utility
US 5,838,011 · App. 08/861,345
Correction device for the correction of lens aberrations in particle-optical apparatus
Inventors:
Marcellinus P. C. M. Krijn, Alexander Henstra, Karel D. Van Den Mast
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: May 21, 1997
Inventors
Marcellinus P. C. M. Krijn
Alexander Henstra
Karel D. Van Den Mast
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.