Granted Patent
Utility
US 4,845,581 · App. 07/115,715
Disc housing clamping method
Inventor:
Efim Bronshvatch
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Nov 2, 1987
Inventor
Efim Bronshvatch
Assignee (at issue)
Seagate Technology LLC
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.