Granted Patent
Utility
US 4,254,362 · App. 06/061,929
Power factor compensating electroluminescent lamp DC/AC inverter
Inventor:
Harry W. Tulleners
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Jul 30, 1979
Inventor
Harry W. Tulleners
Assignee (at issue)
Midland-Ross 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.