Patent US4465105A successfully refreshed from Google Patents.
Patent US2736578A successfully refreshed from Google Patents.
US2736578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotative sleeve lock swivel coupler
Assignee: Individual
•
Filing: 1951-03-14
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Granted: 1956-02-28
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Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Rafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:21
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1322357A
Cited
US2147835A
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US2386270A
Cited
GB576437A
Cited
US2461699A
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US2514167A
Cited
US2509444A
Cited
US2516758A
Cited
US2565572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |