Patent US3032748A successfully refreshed from Google Patents.
US3396546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing concrete piles for foundations
Assignee: Individual
•
Filing: 1966-08-31
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Granted: 1968-08-13
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Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Friedrich W Pleuger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:02
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/08; E02D5/00; E02D5/22; E02D5/226; E02D5/34; E02D5/38; E02D5/385; E02D5/66; E02D5/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |