IP Library › Granted Patent US 6,820,601
Granted Patent Utility
US 6,820,601 · Confirmation No. 9031

FREEZE-RESISTANT POSITIVE CRANKCASE VENTILATION VALVE

Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2005-01-06 PGREF Request for Refund of Publication Fee Paid 2 View
2004-08-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-08-10 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-08-10 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-08-10 892 List of references cited by examiner 1 View
2004-08-10 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2004-08-10 SRFW Search information including classification, databases and other search related notes 1 View
2004-08-10 BIB Bibliographic Data Sheet 1 View
2004-08-05 SRNT Examiner's search strategy and results 1 View
2003-08-21 TRNA Transmittal of New Application 2 View
2003-08-21 SPEC Specification 6 View
2003-08-21 CLM Claims 2 View
2003-08-21 ABST Abstract 1 View
2003-08-21 DRW Drawings-only black and white line drawings 1 View
2003-08-21 OATH Oath or Declaration filed 3 View
2003-08-21 WFEE Fee Worksheet (SB06) 1 View
2003-08-21 WFEE Fee Worksheet (SB06) 1 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 6,820,601
App. No.
10/646,210
Filed
2003-08-21
Granted
2004-11-23
Art Unit
3747
PTA
0 days