Granted Patent
Utility
US 4,841,625 · App. 06/592,346
Automatic throat height control for film head
Inventor:
Erich P. Valstyn
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: May 3, 1984
Inventor
Erich P. Valstyn
Assignees (at issue)
Computer & Communications Technology Corp.
Magnetic Peripherals, Inc.
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.