IP Library Granted Patent US 6,520,256
Granted Patent Utility
US 6,520,256 · Confirmation No. 2926

DOWNHOLE CEMENTING SYSTEM

Inventor: Thomas E. Ferg
⬇ PDF
Code Description Pages PDF
2001-04-20 TRNA Transmittal of New Application 2 View
2001-04-20 SPEC Specification 7 View
2001-04-20 CLM Claims 10 View
2001-04-20 ABST Abstract 1 View
2001-04-20 DRW Drawings-only black and white line drawings 3 View
2001-04-20 OATH Oath or Declaration filed 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 6,520,256
App. No.
09/839,521
Filed
2001-04-20
Granted
2003-02-18
Pub. No.
US20020153138A1
Art Unit
3672
PTA
0 days