US2634806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and air delivery adjusting means for oil burners
Assignee: SYNCROMATIC CORP
•
Filing: 1951-10-22
•
Granted: 1953-04-14
•
Expires: 1971-10-22
Abstract
No abstract record available.
Inventors
- 👤 John F Hirtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:37
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/408; F23D11/001; F23D11/24; F23D11/26; F23D11/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2163915A
Cited
US2298745A
Cited
US2393897A
Cited
US2585081A
Cited
US2590111A
Cited
US2575613A
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 |