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Patent US2675939A successfully refreshed from Google Patents.
US2675939A
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US
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Closure device for fluid supply connections and the like
Assignee: Avery Hardoll Ltd
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Filing: 1952-02-05
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Granted: 1954-04-20
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Expires: 1972-02-05
Abstract
No abstract record available.
Inventors
- 👤 Fraser John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:08
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/115; F16L55/1155; B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738893A
Cited
FR733195A
Cited
US2102962A
Cited
US2179136A
Cited
US2225964A
Cited
US2581537A
Cited
US2552053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |