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US2630864A
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Well formation tool
Assignee: Lynes Inc
•
Filing: 1944-10-19
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Granted: 1953-03-10
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Expires: 1964-10-19
Abstract
No abstract record available.
Inventors
- 👤 Lynes John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:07
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1840379A
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US1850218A
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US2143106A
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US2161135A
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US2143746A
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US2186230A
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US2227731A
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US2248169A
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US2516580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |