Granted Patent
Utility
US 4,286,388 · App. 05/862,463
Sight with reduced friction line of sight adjustment
Inventors:
Cecil J. Ross, John F. Thompson
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Dec 20, 1977
Inventors
Cecil J. Ross
John F. Thompson
Assignee (at issue)
W. R. Weaver Co.
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.