US2952131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming concrete piles
Assignee: Individual
•
Filing: 1954-12-13
•
Granted: 1960-09-13
•
Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lyroudias Leonidas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:08
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1101662A
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US1900622A
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GB395323A
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US2140111A
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US2087403A
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US2184514A
Cited
US2421666A
Cited
US2433477A
Cited
US2483239A
Cited
US2684576A
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US2795934A
Cited
US2830443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |