US2605077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined needle and flush valve assembly
Assignee: Airco Inc
•
Filing: 1947-12-05
•
Granted: 1952-07-29
•
Expires: 1967-12-05
Abstract
No abstract record available.
Inventors
- 👤 Wayne W Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:11
CPC Classifications
E; E03; E03D; E03D3/00; E03D3/02; E03D3/04; F; F16; F16K; F16K1/00; F16K1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1559706A
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US1682248A
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US1406869A
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US1424305A
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US1455940A
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US1854051A
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US1765162A
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US1846699A
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US1806462A
Cited
US1935971A
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US2354362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |