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US2905247A
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US
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Wire line liquid or gas formation thief
Assignee: Pgac Dev Co
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Filing: 1955-09-01
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Granted: 1959-09-22
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Expires: 1975-09-01
Abstract
No abstract record available.
Inventors
- 👤 Lyle A Vestermark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1822203A
Cited
US2441894A
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US2511759A
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US2545306A
Cited
US2612346A
Cited
US2708155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |