Granted Patent
Utility
US 4,930,941 · App. 07/274,308
Customer terminal for a single tube pneumatic system for banking and the like
Inventors:
Clair L. Willey, David H. Ayer
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Nov 21, 1988
Inventors
Clair L. Willey
David H. Ayer
Assignee (at issue)
Inter Innovation LeFebure Manufacturing
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.