Granted Patent
Utility
US 4,835,693 · App. 07/019,285
Brake assurance monitor
Inventors:
Ray Smith, Stanley Ladouceur
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Feb 26, 1987
Inventors
Ray Smith
Stanley Ladouceur
Assignee (at issue)
UTDC Inc.
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.