Patent US2444568A successfully refreshed from Google Patents.
US2444568A
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Electronic control circuit
Assignee: Honeywell Inc
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Filing: 1943-03-26
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Granted: 1948-07-06
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Expires: 1963-03-26
Abstract
No abstract record available.
Inventors
- 👤 Siegfried G Isserstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:51
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1631979A
Cited
GB261384A
Cited
US2208349A
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US2222172A
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US2217478A
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US2292846A
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US2341351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |