US2792818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-cycle internal combustion engine
Assignee: Viking Tool & Machine Corp
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Filing: 1955-01-12
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Granted: 1957-05-21
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Expires: 1975-01-12
Abstract
No abstract record available.
Inventors
- 👤 Lindstrom John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
F; F02; F02B; F02B25/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2700/00; F02B2700/03; F02B2700/037
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) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |