Granted Patent
Utility
US 4,188,650 · App. 05/883,597
Diskette with access cover means
Inventor:
Wolf-Heider Rein
Patented Case
View Patent ↗
Granted: Feb 12, 1980
Filed: Mar 6, 1978
Inventor
Wolf-Heider Rein
Assignee (at issue)
International Standard Electric 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.