US3614866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polypod structure for civil engineering uses
Assignee: Kyowa Concrete Industry Co Ltd
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Filing: 1969-04-01
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Granted: 1971-10-26
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Expires: 1989-04-01
Abstract
Abstract A POLYOL BLOCK IS COMPOSED OF AT LEAST THREE PILLARSHAPED PARTS INTEGRALLY JOINED WITH ALTERNATELY CROSSED RELATIONSHIP, THE BLOCK THEREBY HAVING AT LEAST SIX LEGS, AND THE DIMENSIONS AND SHAPE OF THE BLOCK ARE SO SELECTED THAT A LARGE NUMBER OF THESE BLOCKS CAN BE INTERLOCKED IN SEVERAL WAYS TO FORM TIGHTLY ASSEMBLED COMBINATIONS OF THE BLOCKS FOR PURPOSES SUCH AS WAVE BREAKING, SOIL EROSION CONTROL, AND DISSIPATION OF THE ENERGY OF FLOWING WATER.
Inventors
- 👤 Taisuke Kaneko
- 👤 Fumiyasu Morioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:05
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/129
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |