US915828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: Individual
•
Filing: —
•
Granted: 1909-03-23
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Expires: 1926-03-23
Abstract
No abstract record available.
Inventors
- 👤 Everett S Cameron
- 👤 Forrest F Cameron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:06
CPC Classifications
F; F02; F02B; F02B57/00; F02B57/08
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) | 1912-03-22 | 1912-09-21 | 1913-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-22 | 1916-09-21 | 1917-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-22 | 1920-09-21 | 1921-03-23 | $7700.00 | Window Closed / Lapsed |