Granted Patent
Utility
US 4,565,991 · App. 06/509,246
Chime generator circuit for connection with existing automobile radio speaker
Inventors:
Peter J. Lupoli, Brooke N. Westover
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Jun 30, 1983
Inventors
Peter J. Lupoli
Brooke N. Westover
Assignee (at issue)
CASCO PRODUCTS 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.