IP Library Granted Patent US 6,711,525
Granted Patent Utility
US 6,711,525 · App. 09/958,613

Filter monitor

Inventors: Tim Fox, Norman L. Seigel
Patented Case View Patent ↗
Granted: Mar 23, 2004 Filed: Apr 30, 2002
Inventors
Tim Fox
Norman L. Seigel
Assignee (at issue)
Pneumatic Products Corporation

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 6,711,525
App. No.
09/958,613
Filed
2002-04-30
Granted
2004-03-23
Kind
B1