Granted Patent
Utility
US 4,166,282 · App. 05/807,155
Track-on-data technique and associated system involving di-bit recording and associated di-gap transducers
Inventors:
Herbert U. Ragle, Norman S. Blessum
Patented Case
View Patent ↗
Granted: Aug 28, 1979
Filed: Jun 16, 1977
Inventors
Herbert U. Ragle
Norman S. Blessum
Assignee (at issue)
Burroughs, 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.