Granted Patent
Utility
US 4,129,891 · App. 05/792,589
Double partitioning of flexible disk pack and associated apparatus
Inventors:
Herbert U. Ragle, Dean DeMoss
Patented Case
View Patent ↗
Granted: Dec 12, 1978
Filed: May 2, 1977
Inventors
Herbert U. Ragle
Dean DeMoss
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.