Granted Patent
Utility
US 4,873,757 · App. 07/212,143
Method of making a multilayer electrical coil
Inventor:
K. Williams
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Jun 27, 1988
Inventor
K. Williams
Assignee (at issue)
Fox Boro Company
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.