Patent US2869487A successfully refreshed from Google Patents.
US2869487A
Expired / Lapsed
US
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Incinerators
Assignee: Silent Glow Oil Burner Corp
•
Filing: 1955-08-25
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Granted: 1959-01-20
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Expires: 1975-08-25
Abstract
No abstract record available.
Inventors
- 👤 Rallston M Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:22
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/16; F23J; F23J2217/00; F23J2217/50; Y; Y10; Y10S; Y10S261/00; Y10S261/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USRE18622E
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US830974A
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US1948348A
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US2160481A
Cited
US2274050A
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US2291790A
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US2259033A
Cited
US2515869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |