US914627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: COOLEY DEVELOPMENT Co
•
Filing: 1907-10-15
•
Granted: 1909-03-09
•
Expires: 1927-10-15
Abstract
No abstract record available.
Inventors
- 👤 John Stuart Alcorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/08; F01C1/10; F01C1/103
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) | 1912-03-08 | 1912-09-07 | 1913-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-08 | 1916-09-07 | 1917-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-08 | 1920-09-07 | 1921-03-09 | $7700.00 | Window Closed / Lapsed |