Patent US2831120A successfully refreshed from Google Patents.
US2395604A
Expired / Lapsed
US
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Switch mechanism and follow-up system
Assignee: AUTOMATIC CONTROL Corp
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Filing: 1942-04-23
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Granted: 1946-02-26
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Expires: 1962-04-23
Abstract
No abstract record available.
Inventors
- 👤 John O Yeida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/125; G05D3/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-02-25 | 1949-08-27 | 1950-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-25 | 1953-08-27 | 1954-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-25 | 1957-08-27 | 1958-02-26 | $7700.00 | Window Closed / Lapsed |