Granted Patent
Utility
US 5,224,376 · App. 07/831,876
Atomic force microscope
Inventors:
Virgil B. Elings, John A. Gurley, Peter Maivald
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Feb 6, 1992
Inventors
Virgil B. Elings
John A. Gurley
Peter Maivald
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.