Granted Patent
Utility
US 5,412,980 · App. 07/926,175
Tapping atomic force microscope
Inventors:
Virgil B. Elings, John A. Gurley
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Aug 7, 1992
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.