Granted Patent
Utility
US 4,511,943 · App. 06/364,733
Damage control apparatus for magnetic tape transport
Inventor:
Erno H. Fechner
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Apr 2, 1982
Inventor
Erno H. Fechner
Assignee (at issue)
Ampex 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.