Granted Patent
Utility
US 4,982,633 · App. 07/450,708
Facing head with mass balancing
Inventor:
Herbert Jager
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Dec 14, 1989
Inventor
Herbert Jager
Assignee (at issue)
GTE Valenite 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.