IP Library Granted Patent US 6,585,887
Granted Patent Utility
US 6,585,887 · Confirmation No. 1972

END CAP RELIEF VALVE MECHANISM FOR A FILTER

⬇ PDF
Code Description Pages PDF
2025-12-08 OATH Oath or Declaration filed 53 View
2025-12-03 OATH Oath or Declaration filed 53 View
2001-03-28 TRNA Transmittal of New Application 2 View
2001-03-28 SPEC Specification 8 View
2001-03-28 CLM Claims 4 View
2001-03-28 ABST Abstract 1 View
2001-03-28 DRW Drawings-only black and white line drawings 3 View
2001-03-28 OATH Oath or Declaration filed 2 View
Monitor This Case
Get email alerts when status or documents change.
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 application's details
Quick Facts
Patent No.
US 6,585,887
App. No.
09/820,267
Filed
2001-03-28
Granted
2003-07-01
Pub. No.
US20020139733A1
Art Unit
1723
PTA
-136 days