Granted Patent
Utility
US 4,353,261 · App. 06/237,595
Multi-position amplitude device
Inventor:
Chittaranjan Salani
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Feb 24, 1981
Inventor
Chittaranjan Salani
Assignee (at issue)
Koehring Company
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.