Granted Patent
Utility
US 4,243,186 · App. 06/078,845
Low profile magnetic tape drive with vacuum actuated auto-threading
Inventors:
Jack Peter, Karl B. Offerman, Larry D. Brown, Derek J. Stone
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Sep 25, 1979
Inventors
Jack Peter
Karl B. Offerman
Larry D. Brown
Derek J. Stone
Assignee (at issue)
Cipher Data Products, 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.