US3561219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile mat for industrial use in the field of civil engineering
Assignee: Toray Industries Inc
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Filing: 1968-04-10
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Granted: 1971-02-09
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Expires: 1988-04-10
Abstract
Abstract A FABRIC MAT FOR SOIL STABILIZATION HAS CONTINUOUS BANDS OF SINGLE PLY FABRIC ALTERNATING WITH INTERVENING CONTINUOUS BANDS OF TWO-PLY FABRIC FORMING BETWEEN THE TWO PILES CONTINUOUS HOLLOW TUBELIKE CONTAINERS WHICH ARE FILLED WITH SAND, GRAVEL OR THE LIKE. ONE END OF THE TUBELIKE CONTAINERS IS CLOSED BEFORE FILLING AND THE OTHER AFTER FILLING. THE MATS MAY HAVE SELVAGES ALONG OPPOSITE SIDE EDGES WHICH ARE SECURED TO SELVAGES OF LIKE MATS TO CONNECT A PLURALITY OF MATS TOGETHER.
Inventors
- 👤 Masazumi Nishizawa
- 👤 Kaizo Kotera
- 👤 Michitsura Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:41
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/122; E02B3/127; D; D03; D03D; D03D25/00
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |