US2660156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine with scavenging air blower
Assignee: SCHNURLE
•
Filing: 1949-04-05
•
Granted: 1953-11-24
•
Expires: 1969-04-05
Abstract
No abstract record available.
Inventors
- 👤 Kopf Johann
- 👤 Elwert Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:58
CPC Classifications
F; F02; F02B; F02B33/00; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308465A
Cited
US719547A
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FR459080A
Cited
US2057062A
Cited
FR784892A
Cited
FR843141A
Cited
US2235050A
Cited
US2254439A
Cited
US2354227A
Cited
GB560424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |