Granted Patent
Utility
US 6,749,172
· Confirmation No. 8828
ROTATING BLOWOUT PREVENTER WITH INDEPENDENT COOLING CIRCUITS AND THRUST BEARING
Inventor:
Joseph Kinder
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2019-12-23 | OATH |
Oath or Declaration filed | 9 | View | |
| 2004-05-03 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-04-25 | TRNA |
Transmittal of New Application | 2 | View | |
| 2003-04-25 | SPEC |
Specification | 11 | View | |
| 2003-04-25 | CLM |
Claims | 5 | View | |
| 2003-04-25 | ABST |
Abstract | 1 | View | |
| 2003-04-25 | DRW |
Drawings-only black and white line drawings | 5 | View | |
| 2003-04-25 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
Joseph Kinder
Deer Park, TX
Attorneys & Agents of Record
Classification
USPC
251/1.2
E21B34/16
Y10T137/0379
E21B33/085
Y10S277/927
Prosecution
- Examiner
- KEASEL, ERIC S
- Art Unit
- 3754
- Customer No.
- 21322
- Docket No.
- PDHO002A
- Confirmation No.
- 8828
Publication
- Pub. No.
- US20030193035A1
- Pub. Date
- 2003-10-16
Patent Term Adjustment
0days
Parent
is a Division of
→
App. 09/735,385
· US 6,554,016
Filed 2000-12-12
· Patented Case
Child
is a Division of
→
App. 10/867,603
· US 7,004,444
Filed 2004-06-15
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
is a Division of
→
App. 10/868,560
· US 7,007,913
Filed 2004-06-15
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
PATENT SECURITY INTEREST ASSIGNMENT AGREEMENT
Recorded 2023-04-26
WEATHERFORD TECHNOLOGY HOLDINGS, LLC,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
HIGH PRESSURE INTEGRITY, INC.,
PRECISION ENERGY SERVICES, INC.,
WEATHERFORD CANADA LTD.,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
PRECISION ENERGY SERVICES ULC,
WEATHERFORD U.K. LIMITED
RELEASE OF SECURITY INTEREST
Recorded 2020-08-28
from
HIGH PRESSURE INTEGRITY, INC.,
PRECISION ENERGY SERVICES ULC,
PRECISION ENERGY SERVICES, INC.,
WEATHERFORD CANADA LTD.,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
WEATHERFORD TECHNOLOGY HOLDINGS, LLC,
WEATHERFORD U.K. LIMITED
SECURITY INTEREST
Recorded 2020-08-28
from
HIGH PRESSURE INTEGRITY, INC.,
PRECISION ENERGY SERVICES ULC,
PRECISION ENERGY SERVICES, INC.,
WEATHERFORD CANADA LTD.,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
WEATHERFORD TECHNOLOGY HOLDINGS, LLC,
WEATHERFORD U.K. LIMITED
SECURITY INTEREST
Recorded 2019-12-26
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2019-12-23
from
HIGH PRESSURE INTEGRITY INC.,
PRECISION ENERGY SERVICES INC.,
PRECISION ENERGY SERVICES ULC,
WEATHERFORD CANADA LTD.,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
WEATHERFORD TECHNOLOGY HOLDINGS LLC,
WEATHERFORD U.K. LIMITED
SECURITY INTEREST
Recorded 2019-12-18
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2006-04-26
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2006-04-24
CHANGE OF NAME
Recorded 2006-04-21
MERGER
Recorded 2004-04-30
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Quick Facts
- Patent No.
- US 6,749,172
- App. No.
- 10/423,105
- Filed
- 2003-04-25
- Granted
- 2004-06-15
- Pub. No.
- US20030193035A1
- Examiner
- KEASEL, ERIC S
- Art Unit
- 3754
- PTA
- 0 days
External Links