Patent US2845919A successfully refreshed from Google Patents.
US2845919A
Expired / Lapsed
US
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Reciprocating engine, particularly an internal combustion engine
Assignee: Burmeister and Wains Motorog Maskinfabrik AS
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Filing: 1957-12-16
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Granted: 1958-08-05
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Petersen Ove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:36
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0046; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/38; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2275/00; F02B2275/34; F02F2001/244; F02F2001/247
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |