Granted Patent
Utility
US 6,688,400
· Confirmation No. 6054
DOWNHOLE SEALING
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2019-07-23 | OATH |
Oath or Declaration filed | 26 | View | |
| 2016-06-08 | OATH |
Oath or Declaration filed | 12 | View | |
| 2003-11-24 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-11-24 | LET. |
Miscellaneous Incoming Letter | 2 | View | |
| 2002-08-26 | TRNA |
Transmittal of New Application | 4 | View | |
| 2002-08-26 | A.PE |
Preliminary Amendment | 12 | View | |
| 2002-08-26 | SPEC |
Specification | 13 | View | |
| 2002-08-26 | CLM |
Claims | 7 | View | |
| 2002-08-26 | ABST |
Abstract | 1 | View | |
| 2002-05-14 | TRNA |
Transmittal of New Application | 7 | View | |
| 2002-05-14 | A.PE |
Preliminary Amendment | 2 | View | |
| 2002-05-14 | SPEC |
Specification | 19 | View | |
| 2002-05-14 | CLM |
Claims | 9 | View | |
| 2002-05-14 | ABST |
Abstract | 1 | View | |
| 2002-05-14 | DRW |
Drawings-only black and white line drawings | 6 | View | |
| 2002-05-14 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
Paul David Metcalfe
Peterculter, UNITED KINGDOM
Neil Andrew Abercrombie Simpson
Aberdeen, UNITED KINGDOM
Attorneys & Agents of Record
Classification
USPC
166/387
E21B7/20
Y10T29/49872
Y10T29/49911
Y10T29/4994
E21B33/165
B21D17/04
B21D39/04
B21D39/10
E21B29/00
E21B29/005
E21B29/10
E21B33/10
E21B33/13
E21B33/138
E21B43/084
E21B43/103
E21B43/105
E21B43/106
Prosecution
- Examiner
- SCHOEPPEL, ROGER J
- Art Unit
- 3672
- Docket No.
- WEAT/0023.C1
- Confirmation No.
- 6054
Foreign Priority
9828234.6
·
1998-12-22
·
UNITED KINGDOM
9900835.1
·
1999-01-15
·
UNITED KINGDOM
9923783.6
·
1999-10-08
·
UNITED KINGDOM
9924189.5
·
1999-10-13
·
UNITED KINGDOM
Publication
- Pub. No.
- US20020195256A1
- Pub. Date
- 2002-12-26
Patent Term Adjustment
-79days
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 2019-12-26
from
CITIBANK, N.A.
RELEASE OF SECURITY INTEREST
Recorded 2019-12-18
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
TERMINATION AND RELEASE OF SECOND LIEN SECURITY INTEREST IN UNITED STATES PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (049677/0904)
Recorded 2019-12-13
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2019-07-23
CONFIRMATORY GRANT OF SECOND LIEN SECURITY INTEREST IN UNITED STATES PATENTS
Recorded 2019-07-03
TERMINATION AND RELEASE OF SECURITY INTEREST IN UNITED STATES PATENTS
Recorded 2019-07-03
SECURITY INTEREST
Recorded 2016-06-08
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-05-14
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Quick Facts
- Patent No.
- US 6,688,400
- App. No.
- 10/145,599
- Filed
- 2002-05-14
- Granted
- 2004-02-10
- Pub. No.
- US20020195256A1
- Examiner
- SCHOEPPEL, ROGER J
- Art Unit
- 3672
- PTA
- -79 days
External Links