Patent US3500805A successfully refreshed from Google Patents.
US3500805A
Expired / Lapsed
US
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Gas exchange system for v-type internal combustion engines
Assignee: Daimler Benz AG
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Filing: 1967-12-15
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Granted: 1970-03-17
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Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Josef Reisacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10242; F02M35/10288; F02B; F02B27/00; F02B27/005; F02B27/006; F02B31/00; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02F; F02F1/00; F02F1/24; F02F1/42; F02M35/10006; F02M35/10026; F02M35/10045; F02M35/104; F02M35/116; F02B2275/00; F02B2275/34; F02B3/00; F02B3/06; F02F2001/244; F02F2001/247; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1513433A
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GB394647A
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US1960362A
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GB410047A
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GB615324A
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US2927564A
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US2916027A
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FR1192664A
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US2974654A
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US3054390A
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US3094974A
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US3159148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |