US1042994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: CARL P MAHAFFEY
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Filing: 1912-05-08
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Granted: 1912-10-29
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Expires: 1932-05-08
Abstract
No abstract record available.
Inventors
- 👤 James G Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:05
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/22; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C1/3446
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) | 1915-10-29 | 1916-04-29 | 1916-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-10-29 | 1920-04-29 | 1920-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-10-29 | 1924-04-29 | 1924-10-29 | $7700.00 | Window Closed / Lapsed |