Granted Patent
Utility
US 4,871,938 · App. 07/206,091
Positioning device for a scanning tunneling microscope
Inventors:
Virgil B. Elings, John A. Gurley
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Jun 13, 1988
Inventors
Virgil B. Elings
John A. Gurley
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.