Patent US2742232A successfully refreshed from Google Patents.
US2742232A
Expired / Lapsed
US
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Control device
Assignee: Detroit Controls Corp
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Filing: 1953-05-06
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Granted: 1956-04-17
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Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 Earnest J Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:59
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; C; C02; C02F; C02F1/00; C02F1/42; F23N1/00; F23N5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493919A
Cited
US1624681A
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US1884256A
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US2039910A
Cited
US2358809A
Cited
US2353146A
Cited
US2638121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |