US2654562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle valve
Assignee: FOSTER ENGINEERING Co
•
Filing: 1950-01-07
•
Granted: 1953-10-06
•
Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 Shubel A Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:13
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195188A
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US1318101A
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US651381A
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US1392952A
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US1534691A
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US1619937A
Cited
US2134778A
Cited
US2190575A
Cited
US2211646A
Cited
US2168774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |