US2905235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner with flame shaping means
Assignee: CONFIGURED TUBE PRODUCTS Co
•
Filing: 1956-04-12
•
Granted: 1959-09-22
•
Expires: 1976-04-12
Abstract
No abstract record available.
Inventors
- 👤 John W Dolby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:19
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US73957A
Cited
US617200A
Cited
US1097825A
Cited
US1775866A
Cited
FR772290A
Cited
US2542335A
Cited
US2731009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |