Granted Patent
Utility
US 5,992,033 · App. 08/840,793
Shock absorbing, easily calibrated vial system for a carpenter's level
Inventor:
Dane Scarborough
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Apr 16, 1997
Inventor
Dane Scarborough
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.