US2828980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial and radial stress relieving conduit coupling
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-06-14
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Granted: 1958-04-01
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Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 Lester M Craig
- 👤 David D Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:30
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184349A
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US2511813A
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US1349663A
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US1802353A
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US2364133A
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US2517470A
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US2646294A
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US2688501A
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US2628851A
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US2656201A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |