US3470633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious dredge
Assignee: Beloit Pipe and Dredge Inc
•
Filing: 1967-06-20
•
Granted: 1969-10-07
•
Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert M Soehnlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:33
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/8833; E02F3/8841; E02F9/00; E02F9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US635798A
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US927680A
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US939878A
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US1822965A
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US2271344A
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US2917851A
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US3005273A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |