Granted Patent
Utility
US 4,648,259 · App. 06/768,369
Adjustable nose piece
Inventor:
Richard A. Pendleton
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Aug 22, 1985
Inventor
Richard A. Pendleton
Assignee (at issue)
USM Holding AG
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.