Patent US2804834A successfully refreshed from Google Patents.
US2804834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling grate stoker
Assignee: Riley Power Inc
•
Filing: 1954-03-19
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Granted: 1957-09-03
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Expires: 1974-03-19
Abstract
No abstract record available.
Inventors
- 👤 Russell C Rivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:47
CPC Classifications
F; F23; F23H; F23H11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US575092A
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US1670642A
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US1971374A
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US2092080A
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US2294441A
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US2356144A
Cited
US2363932A
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US2550521A
Cited
US2476567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |