US3788882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic composite and process for preparing
Assignee: Richardson Co
•
Filing: 1972-06-23
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Granted: 1974-01-29
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Expires: 1992-06-23
Abstract
Abstract BREATHABLE SYNTHETIC COMPOSITES FOR ARTICLES OF CLOTHING INCLUDING SHOE UPPERS ARE PROVIDED BY LAMINATES COMPOSED OF OPEN-CELL SYNTHETIC FOAMS, A POLYURETHANE FILM AND A PLATICIZER WHICH RENDERS THE SYNTHETIC COMPOSITE RESISTANT TO LIQUID WATER TRANSFER WHILE ALLOWING WATERVAPOR TRANSFER THROUGH THE COMPOSITE. A PARTICULARLY USEFUL COMPOSITE COMPRISES A POLYVINYL CHLORIDE, OPEN-CELL FOAM AND THERMOPLASTIC POLYURETHANE FILM CONTAINING A PLASTICIZER SUCH AS TRI-BUTOXYETHYL PHOSPHATE TO IMPROVE MOISTURE-VAOPR TRANSMISSION PROPERTIES OF THE COMPOSITE WHILE MAINTAINING A SUFFICIENT BARRIER TO LIQUID WATER.
Inventors
- 👤 T Noone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:30
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/18; D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; D06N3/08; D06N3/12; D06N3/14; C08J2375/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/3158; Y10T442/00; Y10T442/30; Y10T442/3325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |