US2736302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled two-cycle internal-combustion engines
Assignee: Kloeckner Humboldt Deutz AG
•
Filing: 1951-01-05
•
Granted: 1956-02-28
•
Expires: 1971-01-05
Abstract
No abstract record available.
Inventors
- 👤 Keylwert Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:08
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/04; F02F1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB213801A
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US1599242A
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GB270226A
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US2058528A
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US2171783A
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GB508238A
Cited
US2228832A
Cited
US2611346A
Cited
US2638081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |