US3151464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundation piles
Assignee: Nippon Sharyo Ltd
•
Filing: 1960-05-23
•
Granted: 1964-10-06
•
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 15:11
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/52; E02D5/523; E02D5/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US858742A
Cited
US1542037A
Cited
US1979547A
Cited
US2025948A
Cited
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 |