Patent US3464211A successfully refreshed from Google Patents.
US3464211A
Expired / Lapsed
US
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Modular structure for restraining walls
Assignee: MAGNE A ANDRESEN
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Filing: 1967-03-08
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Granted: 1969-09-02
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Expires: 1987-03-08
Abstract
No abstract record available.
Inventors
- 👤 Magne A Andresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:05
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/02; E02D29/0258; E02D29/0266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US400693A
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US751492A
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US1909539A
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US2035050A
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US2315441A
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US2333168A
Cited
US2351856A
Cited
FR1011707A
Cited
US2820349A
Cited
US3282054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |