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US2620165A
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Well drilling transmission power means
Assignee: C A MIKETTA
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Filing: 1949-01-31
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Granted: 1952-12-02
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Expires: 1969-01-31
Abstract
No abstract record available.
Inventors
- 👤 Charles S Crickmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:12
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/07; E21B17/073; F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2025100A
Cited
US1960688A
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US2016154A
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US2067284A
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US2235605A
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US2212153A
Cited
US2325132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |