IP Library Granted Patent US 5,135,645
Granted Patent Utility
US 5,135,645 · App. 07/676,416

Refrigerator water filter

Inventors: John S. Sklenak, Sol Aisenberg, Thomas J. Martel
Patented Case View Patent ↗
Granted: Aug 4, 1992 Filed: Mar 28, 1991
Inventors
John S. Sklenak
Sol Aisenberg
Thomas J. Martel
Assignee (at issue)
Raytheon Company

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 5,135,645
App. No.
07/676,416
Filed
1991-03-28
Granted
1992-08-04
Kind
A