Granted Patent
Utility
US 4,375,992 · App. 06/370,533
Apparatus and method for cleaning recorded discs
Inventors:
Barry Stevens, Lester R. Aldridge
Patented Case
View Patent ↗
Granted: Mar 8, 1983
Filed: Apr 21, 1982
Inventors
Barry Stevens
Lester R. Aldridge
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.