US2479889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pot type oil burner with air preheating means
Assignee: RICHARD S MOORE
•
Filing: 1946-08-09
•
Granted: 1949-08-23
•
Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:59
CPC Classifications
F; F23; F23D; F23D5/00; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1997347A
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US2109946A
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US2214664A
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US2272423A
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US2214693A
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US2261814A
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US2287361A
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US2290544A
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US2344758A
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US2369833A
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US2401086A
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US2404039A
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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) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |