US2804031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for burning wood refuse
Assignee: Individual
•
Filing: 1953-12-14
•
Granted: 1957-08-27
•
Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward T Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:09
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/32; F23G5/36; F23G2209/00; F23G2209/26; F23G2209/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US195495A
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US472981A
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US744131A
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US1278937A
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US1462720A
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US1496900A
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US1531766A
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GB253322A
Cited
US1860366A
Cited
US2387005A
Cited
US2504991A
Cited
US2666403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |