US2767783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic control for burners
Assignee: Scully Signal Co
•
Filing: 1952-09-09
•
Granted: 1956-10-23
•
Expires: 1972-09-09
Abstract
No abstract record available.
Inventors
- 👤 William G Rowell
- 👤 Edward B Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:22
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB424955A
Cited
US2352143A
Cited
US2304641A
Cited
US2539535A
Cited
US2612749A
Cited
US2549464A
Cited
US2600928A
Cited
US2678090A
Cited
US2692962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |