Patent US1375576A successfully refreshed from Google Patents.
US1375576A
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Automatic clutch
Assignee: ANONIMA MANIFATTURA LUIGI DUCA
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Filing: 1919-12-26
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Granted: 1921-04-19
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Expires: 1939-12-26
Abstract
No abstract record available.
Inventors
- 👤 Duca Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:50
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/022; F02N15/023; F16; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/14; F16D43/16
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) | 1924-04-18 | 1924-10-18 | 1925-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-04-18 | 1928-10-18 | 1929-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-04-18 | 1932-10-18 | 1933-04-19 | $7700.00 | Window Closed / Lapsed |