IP Library Granted Patent US 5,665,231
Granted Patent Utility
US 5,665,231 · App. 08/551,683

Full flow/bypass filter assembly

Inventors: Brian J. Langsdorf, Ralph Allen Knopp, Gerard W. Bilski
Patented Case View Patent ↗
Granted: Sep 9, 1997 Filed: Nov 1, 1995
Inventors
Brian J. Langsdorf
Ralph Allen Knopp
Gerard W. Bilski
Assignee (at issue)
AlliedSignal, 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 5,665,231
App. No.
08/551,683
Filed
1995-11-01
Granted
1997-09-09
Kind
A