US2676608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure
Assignee: Babcock and Wilcox Co
•
Filing: 1945-07-16
•
Granted: 1954-04-27
•
Expires: 1965-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Svenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:52
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0452; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7929; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US152844A
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US1617603A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |