Patent US3490157A successfully refreshed from Google Patents.
US3490157A
Expired / Lapsed
US
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Suction pipe handling equipment for a suction dredger
Assignee: Appledore Shipbuilders Ltd
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Filing: 1967-06-19
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Granted: 1970-01-20
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Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 James Venus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:45
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US399251A
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US1712312A
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NL31052C
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GB657181A
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US2289260A
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DE1136471B
Cited
US3130840A
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US3228534A
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FR1349019A
Cited
US3217432A
Cited
US3399630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |