Granted Patent
Utility
US 4,380,033 · App. 06/170,334
Disc-drive head positioning systems
Inventor:
Kantilal Bacrania
Patented Case
View Patent ↗
Granted: Apr 12, 1983
Filed: Jul 21, 1980
Inventor
Kantilal Bacrania
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.