Patent US2508692A successfully refreshed from Google Patents.
US2838014A
Expired / Lapsed
US
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Incinerators
Assignee: Silent Glow Oil Burner Corp
•
Filing: 1956-07-25
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Granted: 1958-06-10
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Expires: 1976-07-25
Abstract
No abstract record available.
Inventors
- 👤 Rallston M Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
F; F23; F23G; F23G1/00; F23G5/00; F23G5/08; F23G5/14; F23G5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US491576A
Cited
US1193824A
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US1479875A
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US986594A
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US1156398A
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US1275651A
Cited
US1617609A
Cited
US1901922A
Cited
US1877214A
Cited
US2625121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |