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US2585656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic heat and fire control
Assignee: Individual
•
Filing: 1950-11-27
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Granted: 1952-02-12
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Expires: 1970-11-27
Abstract
No abstract record available.
Inventors
- 👤 Kagan William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:45
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F23N2239/00; F23N2239/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1653602A
Cited
US1638907A
Cited
US1751319A
Cited
US1921708A
Cited
GB415824A
Cited
US2196507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |