Granted Patent
Utility
US 5,002,507 · App. 07/472,903
Circuit board contact element and compliant section thereof
Inventor:
Fred C. Sitzler
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Jan 31, 1990
Inventor
Fred C. Sitzler
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.