US862250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooling system for explosive-engines.
Assignee: Individual
•
Filing: 1906-04-25
•
Granted: 1907-08-06
•
Expires: 1926-04-25
Abstract
No abstract record available.
Inventors
- 👤 Reinhold Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:06
CPC Classifications
F; F01; F01P; F01P5/00; F01P5/02; F01P5/08; Y; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1910-08-05 | 1911-02-04 | 1911-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-08-05 | 1915-02-04 | 1915-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-08-05 | 1919-02-04 | 1919-08-06 | $7700.00 | Window Closed / Lapsed |