US3094131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle cooling system cleaning apparatus
Assignee: Individual
•
Filing: 1961-04-11
•
Granted: 1963-06-18
•
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
2026-10-25 12:19
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/06; F01P2011/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1756410A
Cited
US659365A
Cited
US1633669A
Cited
US1741329A
Cited
US2187413A
Cited
US2169620A
Cited
US2222516A
Cited
US2471506A
Cited
US2570021A
Cited
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 |