US961938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion-engine.
Assignee: A Darracq & Cie (1905) Ltd Ste
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Filing: 1909-10-08
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Granted: 1910-06-21
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Expires: 1929-10-08
Abstract
No abstract record available.
Inventors
- 👤 Pierre Alexandre Darracq
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:57
CPC Classifications
F; F02; F02B; F02B67/00; F02B67/04; F02B67/06
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) | 1913-06-20 | 1913-12-20 | 1914-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-06-20 | 1917-12-20 | 1918-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-06-20 | 1921-12-20 | 1922-06-21 | $7700.00 | Window Closed / Lapsed |