US2869630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner with selective flame distribution
Assignee: Individual
•
Filing: 1954-04-28
•
Granted: 1959-01-20
•
Expires: 1974-04-28
Abstract
No abstract record available.
Inventors
- 👤 John H Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:05
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/58; F23D14/583; F23D14/586; F23D14/02; F23D14/04; F23D14/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |