Granted Patent
Utility
US 4,432,026 · App. 06/291,344
Apparatus and method for determining read head position
Inventor:
Charles H. Coleman, Jr.
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Aug 10, 1981
Inventor
Charles H. Coleman, Jr.
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.