US801373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: Individual
•
Filing: 1905-08-02
•
Granted: 1905-10-10
•
Expires: 1925-08-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Gearhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:19
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/084; F01; F01C; F01C1/00; F01C1/08; F01C1/12; F01C1/14; F01C1/20
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) | 1908-10-09 | 1909-04-10 | 1909-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-10-09 | 1913-04-10 | 1913-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-10-09 | 1917-04-10 | 1917-10-10 | $7700.00 | Window Closed / Lapsed |