Patent US2634097A successfully refreshed from Google Patents.
US2634097A
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US
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Apparatus for drilling curved lateral bores deviating from an existing well bore
Assignee: Individual
•
Filing: 1951-01-17
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Granted: 1953-04-07
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Expires: 1971-01-17
Abstract
No abstract record available.
Inventors
- 👤 John A Zublin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:42
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B7/06; E21B7/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1367042A
Cited
US1424109A
Cited
US1595922A
Cited
US1886820A
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US1850403A
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US1970761A
Cited
US2108419A
Cited
US2296161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |