US2495481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas pilot burner with annular flame port
Assignee: UnionTools Inc
•
Filing: 1945-10-05
•
Granted: 1950-01-24
•
Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 William L Riehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:15
CPC Classifications
F; F23; F23Q; F23Q9/00; F23D; F23D14/00; F23D14/26; F23D2207/00; F23D2900/00; F23D2900/00014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US686625A
Cited
US1198006A
Cited
US1961933A
Cited
US1940127A
Cited
US2241295A
Cited
US2340899A
Cited
US2384836A
Cited
US2407517A
Cited
US2385699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |