Granted Patent
Utility
US 4,812,947 · App. 07/134,482
Device for discharging electrostatic potentials
Inventors:
Thomas D. Belanger, Jr., Roy L. Johnson
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Dec 17, 1987
Inventors
Thomas D. Belanger, Jr.
Roy L. Johnson
Assignee (at issue)
GTE Communication Systems 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.