US2737248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonrotary threaded coupling
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1950-07-10
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Granted: 1956-03-06
•
Expires: 1970-07-10
Abstract
No abstract record available.
Inventors
- 👤 Reuben C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:07
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/008; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B17/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111991A
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US1367156A
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US1593909A
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US1840187A
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US2228243A
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US2275935A
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US2378469A
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US2399766A
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GB628316A
Cited
US2498791A
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US2644524A
Cited
US2570618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |