US3676206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous coated fibrous material
Assignee: Toyo Cloth Co Ltd
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Filing: 1969-06-27
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Granted: 1972-07-11
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Expires: 1989-06-27
Abstract
Abstract A NATURAL LEATHER-LIKE PRODUCT HAVING A HIGH MOISTURE PERMEABILITY AND MOISTURE RELEASE, AN ELASTIC PLASTICITY, AND A PECULIAR HAND IS PREPARED BY APPLYING OR IMPREGNATING A POROUS COATED FIBROUS MATERIAL WITH A SOLUTION OF BLENDED COMPOSITION OF POLYGLUTAMATE AND POLYURETHANE AND TREATING IT BY THE WET COAGULATION METHOD.
Inventors
- 👤 Kazuo Nishitani
- 👤 Yasuhiro Shiga
- 👤 Yoshifumi Nishibayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/125; D06N3/126; C; C08; C08L; C08L75/00; C08L75/04; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249987; Y10T428/249991; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/2369; Y10T442/2377
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |