Patent Application
Provisional
App. No. 62/801,496
· Confirmation No. 6687
RETRIEVABLE ANTI-EXTRUSION FOLDBACK-RING BACKUP FOR SEALING ELEMENT
Applicant:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Provisional Application Expired
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2019-02-13 | APP.FILE.REC |
Filing Receipt | 3 | View | |
| 2019-02-05 | ADS |
Application Data Sheet | 8 | View | |
| 2019-02-05 | TR.PROV |
Provisional Cover Sheet (SB16) | 3 | View | |
| 2019-02-05 | DRW |
Drawings-only black and white line drawings | 12 | View | |
| 2019-02-05 | WFEE |
Fee Worksheet (SB06) | 2 | View | |
| 2019-02-05 | N417 |
Electronic Filing System Acknowledgment Receipt | 3 | View | |
| 2019-02-05 | SPEC |
Specification | 5 | View | |
| 2019-02-05 | CLM |
Claims | 2 | View |
Inventors
Michael W. MITCHELL
Houston, TX
Gary D. INGRAM
Richmond, TX
Attorneys & Agents of Record
Prosecution
- Customer No.
- 150256
- Docket No.
- WFT-6547-PROV-US
- Confirmation No.
- 6687
Child
Claims priority from a provisional application
→
App. 16/954,148
· US 11,236,579
Filed 2020-06-15
· Patented Case
Child
Claims priority from a provisional application
→
App. 17/551,422
· US 11,993,999
Filed 2021-12-15
· Patented Case
Child
PCT
Claims priority from a provisional application
→
PCT/US2020/016543
Filed 2020-02-04
· RO PROCESSING COMPLETED-PLACED IN STORAGE
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
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 2019-02-19
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Quick Facts
- App. No.
- 62/801,496
- Filed
- 2019-02-05
External Links