IP Library › Granted Patent US 5,766,469
Granted Patent Utility
US 5,766,469 · App. 08/734,522

Orifice filter

Inventors: Andrew Boast, William B. Hoff
Patented Case View Patent ↗
Granted: Jun 16, 1998 Filed: Oct 18, 1996
Inventors
Andrew Boast
William B. Hoff
Assignee (at issue)
Filtertek 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 5,766,469
App. No.
08/734,522
Filed
1996-10-18
Granted
1998-06-16
Kind
A