Granted Patent
Utility
US 4,724,602 · App. 06/838,467
Autotransformer with common winding having oppositely wound sections
Inventor:
Adrian M. Weissman
Patented Case
View Patent ↗
Granted: Feb 16, 1988
Filed: Apr 15, 1986
Inventor
Adrian M. Weissman
Assignee (at issue)
Universal Manufacturing Co.
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.