Granted Patent
Utility
US 5,644,444 · App. 08/402,540
Read/write protect scheme for a disk cartridge and drive
Inventors:
David G. Braithwaite, Clark C. Bruderer, Gregory M. Allen, David A. Thompson
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Mar 10, 1995
Inventors
David G. Braithwaite
Clark C. Bruderer
Gregory M. Allen
David A. Thompson
Assignee (at issue)
IO-Mega Holding 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.