Granted Patent
Utility
US 4,587,387 · App. 06/598,272
Electric switch with prebiased contact spring
Inventor:
Paul Piguet
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Mar 7, 1984
Inventor
Paul Piguet
Assignee (at issue)
TRANSICOIL LLC
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.