Granted Patent
Utility
US 4,492,463 · App. 06/362,961
Method for inspecting multilayer transparent rods
Inventors:
Dietrich Marcuse, Herman M. Presby
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Mar 29, 1982
Inventors
Dietrich Marcuse
Herman M. Presby
Assignee (at issue)
AT&T Bell Laboratories
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.