Patent US3418984A successfully refreshed from Google Patents.
US3418984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1966-12-20
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Granted: 1968-12-31
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Expires: 1986-12-20
Abstract
No abstract record available.
Inventors
- 👤 Skatsche Othmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02B; F02B2275/00; F02B2275/14; F02B2275/34; F02B3/00; F02B3/06; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02F2001/244; F02F2001/247
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |