IP Library Granted Patent US 4,619,209
Granted Patent Utility
US 4,619,209 · App. 06/763,520

Furnace construction

Inventors: Joseph P. Traeger, Randolph J. Traeger, Mark A. Traeger
Patented Case View Patent ↗
Granted: Oct 28, 1986 Filed: Aug 8, 1985
Inventors
Joseph P. Traeger
Randolph J. Traeger
Mark A. Traeger

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 4,619,209
App. No.
06/763,520
Filed
1985-08-08
Granted
1986-10-28
Kind
A