Patent US2630633A successfully refreshed from Google Patents.
US2630633A
Expired / Lapsed
US
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Gauging device for determining misalignment of land and threads of drill pipes
Assignee: United States Steel Corp
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Filing: 1948-11-19
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Granted: 1953-03-10
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Expires: 1968-11-19
Abstract
No abstract record available.
Inventors
- 👤 Webb Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:12
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/24; G01B5/20; G01B5/207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1243310A
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US1405921A
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US1340845A
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GB167709A
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US1949971A
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US1997639A
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US2119206A
Cited
US2083944A
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US2290731A
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US2443895A
Cited
US2427924A
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 |