Granted Patent
Utility
US 4,969,059 · App. 07/173,970
Offset nulling system for computer disk drives
Inventors:
Le Roy A. Volz, Haim Nissimov
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Mar 28, 1988
Inventors
Le Roy A. Volz
Haim Nissimov
Assignee (at issue)
Rigidyne 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.