Patent US3151464A successfully refreshed from Google Patents.
US3151464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundation piles
Assignee: Nippon Sharyo Ltd
•
Filing: 1960-05-23
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Granted: 1964-10-06
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Sato Shuichiro
- 👤 Nakaoka Jiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:27
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/52; E02D5/523; E02D5/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US858742A
Cited
US1542037A
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US1979547A
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US2025948A
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US2047344A
Cited
FR805536A
Cited
US2555359A
Cited
FR1016503A
Cited
US2924948A
Cited
AT195849B
Cited
US2952130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |