Granted Patent
Utility
US 5,822,876 · App. 08/637,874
Surface displacement measurement gauge
Inventors:
Edwin G. Haas, James R. Kennedy, Alvin Levy, John M. Papazian
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Apr 25, 1996
Inventors
Edwin G. Haas
James R. Kennedy
Alvin Levy
John M. Papazian
Assignee (at issue)
NORTHROP GRUMMAN 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.