Granted Patent
Utility
US 4,408,915 · App. 06/293,747
Reverse tab control system for typewriters
Inventor:
Michael H. Smith
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Aug 17, 1981
Inventor
Michael H. Smith
Assignee (at issue)
SCM Consultants, 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.