Patent US3885151A successfully refreshed from Google Patents.
Patent US3059624A successfully refreshed from Google Patents.
US3059624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stroke internal combustion engines
Assignee: —
•
Filing: —
•
Granted: 1962-10-23
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Expires: 1979-10-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:33
CPC Classifications
F; F02; F02B; F02B25/00; F01; F01L; F01L3/00; F01L3/20; F01L3/205; F16; F16K; F16K15/00; F16K15/14; F16K15/16; F16K15/162; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T137/00; 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)
US2973752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |