Granted Patent
Utility
US 4,547,712 · App. 06/491,481
Subharmonic controller for electromagnetic exciter
Inventors:
John D. Gotal, Junius D. Scott
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: May 4, 1983
Inventors
John D. Gotal
Junius D. Scott
Assignee (at issue)
FMC 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.