Granted Patent
Utility
US 4,852,265 · App. 07/179,510
Level/plumb indicator with tilt compensation
Inventors:
Joseph F. Rando, Henry L. Schwartz
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Apr 8, 1988
Inventors
Joseph F. Rando
Henry L. Schwartz
Assignee (at issue)
Spectra-Physics, 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.