US2710056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner safety control system
Assignee: Individual
•
Filing: 1951-06-29
•
Granted: 1955-06-07
•
Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 William S Parrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:41
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594020A
Cited
US1883247A
Cited
US1883246A
Cited
US1995846A
Cited
US2057383A
Cited
US2265294A
Cited
US2287248A
Cited
US2411230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |