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US2712812A
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Engine cylinder
Assignee: RUCKSTELL Corp
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Filing: 1951-06-26
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Granted: 1955-07-12
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Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Glover E Ruckstell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:00
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/04; F02B75/041; F02F; F02F1/00; F02F1/02; F02F1/04; F02F1/06; F02F1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR424671A
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US1057063A
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US1093659A
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US1532788A
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US1896098A
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FR739716A
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US2137391A
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US2189600A
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US2226595A
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US2276393A
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US2374380A
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US2400575A
Cited
US2525131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |