US1213441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making concrete or reinforced-concrete (ferroconcrete) piles.
Assignee: INTERNATIONALE SIEGWARTBALKEN-GESELLSCHAFT
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Filing: 1913-12-11
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Granted: 1917-01-23
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Expires: 1933-12-11
Abstract
No abstract record available.
Inventors
- 👤 Otto Wilhelmi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:50
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/38; E02D5/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1920-01-23 | 1920-07-24 | 1921-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-01-23 | 1924-07-24 | 1925-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-01-23 | 1928-07-24 | 1929-01-23 | $7700.00 | Window Closed / Lapsed |