Patent US3883328A successfully refreshed from Google Patents.
Patent US3249095A successfully refreshed from Google Patents.
US3249095A
Expired / Lapsed
US
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Combustion system for diesel type rotary engines
Assignee: Yanmar Co Ltd
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Filing: 1965-08-06
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Granted: 1966-05-03
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Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hamada Yoshitsugu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:35
CPC Classifications
F; F02; F02B; F02B55/00; F02B55/14; F01; F01C; F01C1/00; F01C1/22; F01C21/00; F01C21/08; F02B53/00; F02B2053/005; F02B75/00; F02B75/12; F02B2075/125; F02B2730/00; F02B2730/01; F02B2730/018; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |