US2710652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pot type oil burner
Assignee: Department of National Defence
•
Filing: 1951-04-09
•
Granted: 1955-06-14
•
Expires: 1971-04-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Ambrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
F; F23; F23D; F23D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775772A
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US1779844A
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US1836012A
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US1950161A
Cited
US1933427A
Cited
US2129239A
Cited
US2447373A
Cited
US2516722A
Cited
US2561100A
Cited
US2500663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |