US904781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: Individual
•
Filing: 1908-03-23
•
Granted: 1908-11-24
•
Expires: 1928-03-23
Abstract
No abstract record available.
Inventors
- 👤 Bernard F Hoard
- 👤 George A Paine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:23
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344
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) | 1911-11-24 | 1912-05-25 | 1912-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-11-24 | 1916-05-25 | 1916-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-11-24 | 1920-05-25 | 1920-11-24 | $7700.00 | Window Closed / Lapsed |