US1729042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aviation motor
Assignee: Individual
•
Filing: 1920-06-29
•
Granted: 1929-09-24
•
Expires: 1940-06-29
Abstract
No abstract record available.
Inventors
- 👤 Hugo Junkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:37
CPC Classifications
F; F02; F02D; F02D11/00; F02D11/06; F02D11/08; F02D9/00; F02D9/02; F02D2009/0201; F02D2009/0215; F02D2009/0227; F02D2009/0264; F02D2009/0293; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/022; F02D2700/0223; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0235; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1932-09-23 | 1933-03-25 | 1933-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-23 | 1937-03-25 | 1937-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-23 | 1941-03-25 | 1941-09-24 | $7700.00 | Window Closed / Lapsed |