US2624399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Program circuit for automatic furnaces
Assignee: Combustion Control Corp
•
Filing: 1947-11-29
•
Granted: 1953-01-06
•
Expires: 1967-11-29
Abstract
No abstract record available.
Inventors
- 👤 Thomson E Craig
- 👤 Webb Herbert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:03
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/22; F23N2229/00; F23N2231/00; F23N2231/06; F23N2231/08; F23N5/02; F23N5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1910721A
Cited
CH173006A
Cited
US2388666A
Cited
US2412990A
Cited
US2388124A
Cited
US2398008A
Cited
US2427178A
Cited
US2440700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |