US2640313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive control
Assignee: —
•
Filing: —
•
Granted: 1953-06-02
•
Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:25
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F03; F03G; F03G7/00; F03G7/06; F03G7/061; F03G7/06112; F03G7/06113; F03G7/062; F03G7/063; F03G7/064; F03G7/0641; F03G7/066; F23N; F23N5/00; F23N5/24; F23N5/245; F23N5/247
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |