US2861629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner apparatus
Assignee: Surface Combustion Corp
•
Filing: 1952-10-09
•
Granted: 1958-11-25
•
Expires: 1972-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Dailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:28
CPC Classifications
F; F23; F23D; F23D14/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US516107A
Cited
US1508718A
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US1721381A
Cited
US1943286A
Cited
US2241611A
Cited
US2310454A
Cited
US2335188A
Cited
US2391447A
Cited
US2755750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |