Granted Patent
Utility
US 4,989,984 · App. 07/433,140
System for measuring optical characteristics of curved surfaces
Inventor:
Jeremy A. Salinger
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Nov 8, 1989
Inventor
Jeremy A. Salinger
Assignee (at issue)
Environmental Research Institute
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.