US3536123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making internal combustion engine cylinder made of an aluminum alloy enriched with a wear-resistant component on the inside surface
Assignee: Mahle Engine Components Japan Corp
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Filing: 1969-05-12
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Granted: 1970-10-27
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Expires: 1989-05-12
Abstract
No abstract record available.
Inventors
- 👤 Tokichi Izumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:44
CPC Classifications
B; B22; B22D; B22D13/00; Y; Y10; Y10S; Y10S417/00; Y10S417/01; Y10T; Y10T428/00; Y10T428/12; Y10T428/12458
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |