Patent US2450234A successfully refreshed from Google Patents.
US2642075A
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Apparatus for relaying a control function through compressed air
Assignee: Martin Decker Corp
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Filing: 1949-08-15
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Granted: 1953-06-16
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Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jud E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:19
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/12; G01P1/122; G05; G05B; G05B11/00; G05B11/44; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1954514A
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US2073152A
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US2240243A
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US2383457A
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US2461026A
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US2455917A
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US2443891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |