US3471949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic swing control system for dredge
Assignee: American Marine & Machinery Co
•
Filing: 1967-05-08
•
Granted: 1969-10-14
•
Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Neil H Cargile Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/905; F16H61/472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1842537A
Cited
US2717492A
Cited
US3111778A
Cited
US3180040A
Cited
US3206875A
Cited
US3224121A
Cited
US3380179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |