Granted Patent
Utility
US 4,832,478 · App. 07/117,768
Spectacle hinge assembly
Inventor:
Arthur J. Salce
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Nov 5, 1987
Inventor
Arthur J. Salce
Assignee (at issue)
American Optical Corporation
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.