Patent US1843410A successfully refreshed from Google Patents.
US1843410A
Expired / Lapsed
US
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Fuel injection device for internal combustion engines
Assignee: Sulzer AG
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Filing: 1929-08-03
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Granted: 1932-02-02
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Expires: 1949-08-03
Abstract
No abstract record available.
Inventors
- 👤 Salis Eduard Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:42
CPC Classifications
F; F02; F02M; F02M57/00; F02M57/02; F02M2700/00; F02M2700/07; F02M2700/078; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835
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) | 1935-02-01 | 1935-08-03 | 1936-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-01 | 1939-08-03 | 1940-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-01 | 1943-08-03 | 1944-02-02 | $7700.00 | Window Closed / Lapsed |