Granted Patent
Utility
US 4,354,645 · App. 06/161,949
Collapsible mandrel for precise winding of a coil
Inventors:
Xenophon G. Glavas, Robert E. Thompson
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Jun 23, 1980
Inventors
Xenophon G. Glavas
Robert E. Thompson
Assignee (at issue)
International Telephone and Telegraph 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.