Granted Patent
Utility
US 5,286,095 · App. 07/982,459
Air brake emergency control valves
Inventors:
Edward D. Sell, Sergio Campanini
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Nov 27, 1992
Inventors
Edward D. Sell
Sergio Campanini
Assignee (at issue)
Tramec, L.L.C.
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.