Patent US3522707A successfully refreshed from Google Patents.
US3522707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piling construction
Assignee: Individual
•
Filing: 1967-11-20
•
Granted: 1970-08-04
•
Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Gabriel Fuentes Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:14
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/20; E02D5/22; E02D5/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1275470A
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US1936540A
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US1954070A
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US2168269A
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US2430879A
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US2698519A
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US3199300A
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US3198614A
Cited
GB1009499A
Cited
US3343614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |