Patent US3511267A successfully refreshed from Google Patents.
US3511267A
Expired / Lapsed
US
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Valve assembly
Assignee: McDonnell and Miller Inc
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Filing: 1967-09-20
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Granted: 1970-05-12
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Expires: 1987-09-20
Abstract
No abstract record available.
Inventors
- 👤 Elwood H Stonich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:21
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126463A
Cited
US2251441A
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US2842150A
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US2952753A
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US3070344A
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US3224727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |