US2586493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner for liquid fuels
Assignee: Individual
•
Filing: 1947-04-22
•
Granted: 1952-02-19
•
Expires: 1967-04-22
Abstract
No abstract record available.
Inventors
- 👤 Michael J Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:07
CPC Classifications
F; F23; F23D; F23D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1677447A
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US1711140A
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US1862910A
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US2175866A
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US2275002A
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US2391585A
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US2388907A
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US2431456A
Cited
US2391567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |