Patent US825374A successfully refreshed from Google Patents.
US825374A
Expired / Lapsed
US
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Rotary engine.
Assignee: WALLACE N HARVEY
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Filing: 1906-04-13
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Granted: 1906-07-10
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Expires: 1926-04-13
Abstract
No abstract record available.
Inventors
- 👤 Cornelius A Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1909-07-09 | 1910-01-08 | 1910-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-07-09 | 1914-01-08 | 1914-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-07-09 | 1918-01-08 | 1918-07-10 | $7700.00 | Window Closed / Lapsed |