Patent US2932314A successfully refreshed from Google Patents.
US2932314A
Expired / Lapsed
US
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Fabricated valve structure for automatic water injectors
Assignee: Individual
•
Filing: 1956-06-14
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Granted: 1960-04-12
•
Expires: 1976-06-14
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:48
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; F02; F02M; F02M25/00; F02M25/022; F02M25/032; F02M25/035; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6881
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732167A
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US11673A
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US820556A
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US852819A
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US898377A
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US941713A
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US1232855A
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US1370459A
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FR589625A
Cited
US1556431A
Cited
US1597659A
Cited
US1882600A
Cited
US2078481A
Cited
US2628799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |