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US2973752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stroke internal combustion engine
Assignee: Innocenti Societa General per lIndustria Metallurgica e Meccanica
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Filing: 1959-10-20
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Granted: 1961-03-07
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Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Torre Pier Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:59
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/20; F01L3/205; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/1402; F16K15/16; F16K15/162; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |