Granted Patent
Utility
US 4,334,711 · App. 06/201,094
System for automatically delaying application of a snow brake for a railway vehicle
Inventors:
Richard J. Mazur, Robert D. Dimsa, John T. Pekarcik
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Oct 27, 1980
Inventors
Richard J. Mazur
Robert D. Dimsa
John T. Pekarcik
Assignee (at issue)
American Standard 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.