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US2785668A
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Convertible internal combustion engine and compressor
Assignee: AG fur UNTERNEHMUNGEN DER EISEN- und STAHLINDUSTRIE
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Filing: 1954-11-05
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Granted: 1957-03-19
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Expires: 1974-11-05
Abstract
No abstract record available.
Inventors
- 👤 Walter T Dehmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:08
CPC Classifications
F; F04; F04B; F04B41/00; F04B41/04; F01; F01L; F01L13/00; F01L2760/00; F01L2760/003; F01L2760/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1036321A
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US1527456A
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US1861534A
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DE594737C
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US2057354A
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US2178152A
Cited
US2297376A
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US2705480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |