US1899374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine
Assignee: Individual
•
Filing: 1932-01-02
•
Granted: 1933-02-28
•
Expires: 1952-01-02
Abstract
No abstract record available.
Inventors
- 👤 Mathew C Werle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:46
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C11/00; F01C11/002; F01C11/004; F02; F02B; F02B53/00; F02B2730/00; F02B2730/01; F02B2730/012; 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) | 1936-02-28 | 1936-08-29 | 1937-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-28 | 1940-08-29 | 1941-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-28 | 1944-08-29 | 1945-02-28 | $7700.00 | Window Closed / Lapsed |