Granted Patent
Utility
US 4,458,277 · App. 06/292,072
Spacers for end-wise pneumatic partitioned disk pack
Inventors:
Herbert U. Ragle, Dean DeMoss
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Aug 12, 1981
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.