IP Library › Granted Patent US 5,963,631
Granted Patent Utility
US 5,963,631 · App. 08/893,178

Wayside communications safety system

Inventors: Alfred E. Fazio, Charles S. Hall
Patented Case View Patent ↗
Granted: Oct 5, 1999 Filed: Jul 15, 1997
Inventors
Alfred E. Fazio
Charles S. Hall
Assignee (at issue)
NATIONAL RAILROAD PASSENGER 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,963,631
App. No.
08/893,178
Filed
1997-07-15
Granted
1999-10-05
Kind
A