US1410099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine
Assignee: Individual
•
Filing: 1918-02-07
•
Granted: 1922-03-21
•
Expires: 1938-02-07
Abstract
No abstract record available.
Inventors
- 👤 Harvey F Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:07
CPC Classifications
F; F02; F02B; F02B53/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/01; F02B2730/012; F02B2730/013; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1925-03-20 | 1925-09-19 | 1926-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-03-20 | 1929-09-19 | 1930-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-03-20 | 1933-09-19 | 1934-03-21 | $7700.00 | Window Closed / Lapsed |