Patent Application
Utility
App. No. 09/848,647
· Confirmation No. 7235
ROTATING DRILLING HEAD SYSTEM WITH STATIC SEALS
Inventor:
Ian Douglas Calder
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
View Patent ↗
View Publication ↗
|
⬇ PDF
|
Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2001-05-03 | TRNA |
Transmittal of New Application | 2 | View | |
| 2001-05-03 | SPEC |
Specification | 10 | View | |
| 2001-05-03 | CLM |
Claims | 5 | View | |
| 2001-05-03 | ABST |
Abstract | 1 | View | |
| 2001-05-03 | DRW |
Drawings-only black and white line drawings | 3 | View | |
| 2001-05-03 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
Ian Douglas Calder
Houston, TX
Classification
USPC
166/84.4
E21B33/085
E21B33/0387
Prosecution
- Examiner
- BATES, ZAKIYA W
- Art Unit
- 3672
- Docket No.
- 174-99044
- Confirmation No.
- 7235
Publication
- Pub. No.
- US20010047885A1
- Pub. Date
- 2001-12-06
Patent Term Adjustment
-18days
from
ABB VETCO GRAY INC.
SECURITY AGREEMENT
Recorded 2004-10-06
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
- App. No.
- 09/848,647
- Filed
- 2001-05-03
- Granted
- 2003-02-18
- Pub. No.
- US20010047885A1
- Examiner
- BATES, ZAKIYA W
- Art Unit
- 3672
- PTA
- -18 days
External Links