US3543422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater mining assembly
Assignee: Bendix Corp
•
Filing: 1968-06-28
•
Granted: 1970-12-01
•
Expires: 1988-06-28
Abstract
No abstract record available.
Inventors
- 👤 Noel B Plutchak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:40
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F3/9206; E02F3/905; E02F3/9243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US494728A
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US619727A
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US697704A
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US952928A
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US1327651A
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US1758047A
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US2125740A
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US2136596A
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US2906040A
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US3153290A
Cited
US3224121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |