Patent US3388703A successfully refreshed from Google Patents.
US824648A
Expired / Lapsed
US
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Rotary engine.
Assignee: EUGENE J FEINER
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Filing: 1906-03-19
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Granted: 1906-06-26
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Expires: 1926-03-19
Abstract
No abstract record available.
Inventors
- 👤 Richard W Hamann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:24
CPC Classifications
F; F01; F01C; F01C3/00; F01C3/02; F01C3/025
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) | 1909-06-25 | 1909-12-25 | 1910-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-06-25 | 1913-12-25 | 1914-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-06-25 | 1917-12-25 | 1918-06-26 | $7700.00 | Window Closed / Lapsed |