Granted Patent
Utility
US 4,683,505 · App. 06/685,433
Alternately centered disk pack assembly and method
Inventors:
Laurence J. Schmidt, Randall L. Severson, Lyle R. Tufty, Steven Harry Voss
Patented Case
View Patent ↗
Granted: Jul 28, 1987
Filed: Dec 24, 1984
Inventors
Laurence J. Schmidt
Randall L. Severson
Lyle R. Tufty
Steven Harry Voss
Assignee (at issue)
International Business Machines 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.