US958416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary steam-engine.
Assignee: Individual
•
Filing: 1909-12-27
•
Granted: 1910-05-17
•
Expires: 1929-12-27
Abstract
No abstract record available.
Inventors
- 👤 George A Metcalf
- 👤 Walter C Rocheleau
- 👤 Louis T Rocheleau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:22
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/356; F01C1/3562
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) | 1913-05-16 | 1913-11-15 | 1914-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-05-16 | 1917-11-15 | 1918-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-05-16 | 1921-11-15 | 1922-05-17 | $7700.00 | Window Closed / Lapsed |