Granted Patent
Utility
US 4,740,248 · App. 06/913,518
Apparatus and method for cleaning a lens system
Inventors:
Dennis E. Thro, Mort J. Nierenberg
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Sep 30, 1986
Inventors
Dennis E. Thro
Mort J. Nierenberg
Assignee (at issue)
RCA 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.