Granted Patent
Utility
US 4,864,452 · App. 07/160,714
Removable cartridge with lockable access door
Inventors:
Herbert E. Thompson, Donald L. Rolph, Dominic Mercurio
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Feb 26, 1988
Inventors
Herbert E. Thompson
Donald L. Rolph
Dominic Mercurio
Assignee (at issue)
Syquest Technology, 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.