Patent US2916306A successfully refreshed from Google Patents.
US2916306A
Expired / Lapsed
US
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Pipe in socket coupling having loose thread connecting means
Assignee: Mcdowell Manufacturing Co
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Filing: 1957-01-11
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Granted: 1959-12-08
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Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Clyde E Rickard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:55
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/008; F16L17/00; F16L17/02; F16L17/03; F16L17/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2272812A
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US2148036A
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US2226547A
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US2757966A
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US2809853A
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US2806717A
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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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |