Granted Patent
Utility
US 4,749,901 · App. 06/893,757
Elimination of exhaust tube relief in press-sealed lamp
Inventor:
Nickolas Peter Demas
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Aug 6, 1986
Inventor
Nickolas Peter Demas
Assignee (at issue)
Cooper Industries Holdings
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.