Granted Patent
Utility
US 5,345,146 · App. 07/989,198
Drive circuit for electroluminescent panels and the like
Inventors:
Steven E. Koenck, Roger L. Wolf, Daniel E. Alt
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Dec 11, 1992
Inventors
Steven E. Koenck
Roger L. Wolf
Daniel E. Alt
Assignee (at issue)
Norand 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.