US2184983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner control system
Assignee: Individual
•
Filing: 1935-10-09
•
Granted: 1939-12-26
•
Expires: 1955-10-09
Abstract
No abstract record available.
Inventors
- 👤 Earl L Tornquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:32
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2035; F24H9/2042; F24H9/205; F24H15/00; F24H15/30; F24H15/305; F24H15/31; F24H15/33; F24H15/355; F24H15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-12-25 | 1943-06-26 | 1943-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-25 | 1947-06-26 | 1947-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-25 | 1951-06-26 | 1951-12-26 | $7700.00 | Window Closed / Lapsed |