Granted Patent
Utility
US 4,999,494 · App. 07/405,660
System for scanning large sample areas with a scanning probe microscope
Inventor:
Virgil B. Elings
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Sep 11, 1989
Inventor
Virgil B. Elings
Assignee (at issue)
Digital Instruments, 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.