US2849245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-rotary threaded coupling
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1955-08-12
•
Granted: 1958-08-26
•
Expires: 1975-08-12
Abstract
No abstract record available.
Inventors
- 👤 Reuben C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:20
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; F16L15/006; F16L15/08; Y; Y10; Y10S; Y10S285/00; Y10S285/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US520952A
Cited
US1637056A
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US1909601A
Cited
US2498791A
Cited
US2644524A
Cited
US2737248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |