Granted Patent
Utility
US 4,289,975 · App. 06/059,292
Dissipating electrical charge
Inventor:
Norman F. Rolfe
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Jul 20, 1979
Inventor
Norman F. Rolfe
Assignee (at issue)
WATERS GMBH
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.