US1053767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: Individual
•
Filing: 1911-01-12
•
Granted: 1913-02-18
•
Expires: 1931-01-12
Abstract
No abstract record available.
Inventors
- 👤 William N Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:36
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/02; F01C19/04
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) | 1916-02-18 | 1916-08-19 | 1917-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-02-18 | 1920-08-19 | 1921-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-02-18 | 1924-08-19 | 1925-02-18 | $7700.00 | Window Closed / Lapsed |