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US3429461A
Expired / Lapsed
US
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Unloader for barges and the like
Assignee: Individual
•
Filing: 1966-07-19
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Granted: 1969-02-25
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Expires: 1986-07-19
Abstract
No abstract record available.
Inventors
- 👤 Jack Le Roy Fenchel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:35
CPC Classifications
E; E02; E02C; E02C3/00; B; B65; B65G; B65G67/00; B65G2814/00; B65G2814/03; B65G2814/0347; B65G2814/0356; B65G2814/0359; B65G2814/0379; B65G2814/0385; B65G2814/0386; B65G2814/0389
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507766A
Cited
US720557A
Cited
US710194A
Cited
US1732391A
Cited
US2047051A
Cited
US3096894A
Cited
FR1300883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |