US1348103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary internal-combustion engine
Assignee: Individual
•
Filing: 1918-10-16
•
Granted: 1920-07-27
•
Expires: 1938-10-16
Abstract
No abstract record available.
Inventors
- 👤 George John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
F; F02; F02C; F02C7/00; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/356; F01C11/00; F02C5/00; F02C5/12; F03; F03C; F03C2/00
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) | 1923-07-27 | 1924-01-26 | 1924-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-07-27 | 1928-01-26 | 1928-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-07-27 | 1932-01-26 | 1932-07-27 | $7700.00 | Window Closed / Lapsed |