Patent US2635225A successfully refreshed from Google Patents.
US2635225A
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Manually settable temperature sensitive bridge circuit
Assignee: AMERICAN INSTR CO Inc
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Filing: 1949-06-23
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Granted: 1953-04-14
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Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hadady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:44
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906; G05D23/1909; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324818A
Cited
US1969072A
Cited
US2108146A
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US2193762A
Cited
US2246575A
Cited
US2465683A
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US2533286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |