Patent US2946509A successfully refreshed from Google Patents.
US2946509A
Expired / Lapsed
US
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Temperature responsive transducer
Assignee: RTX Corp
•
Filing: 1957-07-30
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Granted: 1960-07-26
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Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 Edward W Radtke
- 👤 Thomas P Farkas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:38
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1022188A
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US1764799A
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US1871733A
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US2271850A
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US2367162A
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US2676757A
Cited
US2780413A
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US2786713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |