Patent US3094131A successfully refreshed from Google Patents.
US3094131A
Expired / Lapsed
US
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Vehicle cooling system cleaning apparatus
Assignee: Individual
•
Filing: 1961-04-11
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Granted: 1963-06-18
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Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 Henry L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:11
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/06; F01P2011/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1756410A
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US659365A
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US1633669A
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US1741329A
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US2187413A
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US2169620A
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US2222516A
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US2471506A
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US2570021A
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US2809650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |