US2822790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1956-05-16
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Granted: 1958-02-11
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bartholome Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:06
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/06; F01M13/02; F01M13/021; F01M13/022; F01M13/023; F01P; F01P11/00; F01P11/02; F01P11/0285; F01P7/00; F01P7/02; F01P7/08; F01P7/081; F01P7/082; F01P7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |