Granted Patent
Utility
US 5,200,672 · App. 07/792,120
Circuit containing symetrically-driven coil for energizing electrodeless lamp
Inventors:
Iosif Sheynberg, Fred Whitney
Patented Case
View Patent ↗
Granted: Apr 6, 1993
Filed: Nov 14, 1991
Inventors
Iosif Sheynberg
Fred Whitney
Assignee (at issue)
GTE Products 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.