IP Library › Granted Patent US 5,950,707
Granted Patent Utility
US 5,950,707 · App. 09/002,471

Sealing element for a regenerative heat exchanger

Inventors: Wayne R. Kozacka, Jackie L. Kaser
Patented Case View Patent ↗
Granted: Sep 14, 1999 Filed: Jan 2, 1998
Inventors
Wayne R. Kozacka
Jackie L. Kaser

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 5,950,707
App. No.
09/002,471
Filed
1998-01-02
Granted
1999-09-14
Kind
A