US2520159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Igniter for vaporizing oil burners of the open receptacle type
Assignee: RELIANCE Manufacturing Co Inc
•
Filing: 1946-12-21
•
Granted: 1950-08-29
•
Expires: 1966-12-21
Abstract
No abstract record available.
Inventors
- 👤 Harry C Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:35
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/06; F23Q7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US453618A
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US1307797A
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US2007889A
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US2239175A
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US1493070A
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US1957701A
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US2438823A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |