Patent US793270A successfully refreshed from Google Patents.
US793270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary explosive-engine.
Assignee: Individual
•
Filing: 1902-08-18
•
Granted: 1905-06-27
•
Expires: 1922-08-18
Abstract
No abstract record available.
Inventors
- 👤 Henrik Edvard Bernhard Blomgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:14
CPC Classifications
F; F02; F02B; F02B57/00; F02B57/08; F01; F01B; F01B9/00; F01B9/04; F01B9/06; F01B2009/061; F01B2009/066; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1824
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1908-06-26 | 1908-12-26 | 1909-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-06-26 | 1912-12-26 | 1913-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-06-26 | 1916-12-26 | 1917-06-27 | $7700.00 | Window Closed / Lapsed |