Patent US2905485A successfully refreshed from Google Patents.
US2905485A
Expired / Lapsed
US
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Valved coupling
Assignee: ZALO Manufacturing Co
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Filing: 1956-12-18
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Granted: 1959-09-22
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Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Zajac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:42
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/28; F16L37/38; F16L37/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875679A
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US2102774A
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US2131271A
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US2265267A
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US2278580A
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US2344739A
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US2459477A
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US2461818A
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US2761469A
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US2744770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |