IP Library Granted Patent US 5,004,190
Granted Patent Utility
US 5,004,190 · App. 07/118,212

Rail heating apparatus

Inventors: Garry Montierth, Stephen Logan, Raymond J. Scott
Patented Case View Patent ↗
Granted: Apr 2, 1991 Filed: Nov 6, 1987
Inventors
Garry Montierth
Stephen Logan
Raymond J. Scott
Assignee (at issue)
Bylin Heating Systems, 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.

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 5,004,190
App. No.
07/118,212
Filed
1987-11-06
Granted
1991-04-02
Kind
A