US2071876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid fuel burner control
Assignee: Roberts Gordon Appliance Corp
•
Filing: 1934-08-04
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Granted: 1937-02-23
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Expires: 1954-08-04
Abstract
No abstract record available.
Inventors
- 👤 Jr William S Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:18
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/46; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/86759; Y10T137/86791; Y10T137/86799; Y10T137/86807
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) | 1940-02-23 | 1940-08-24 | 1941-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-23 | 1944-08-24 | 1945-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-23 | 1948-08-24 | 1949-02-23 | $7700.00 | Window Closed / Lapsed |