US3776790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suede-like materials
Assignee: BASF Corp
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Filing: 1970-12-04
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Granted: 1973-12-04
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Expires: 1990-12-04
Abstract
Abstract A SUEDE-LIKE MATERIAL IS PRODUCED BY EXPANDING A THIN LAYER OF FUSED DEAERATED VINYL PLASTISOL, CONTAINING A BLOWING AGENT, ON A BACKING TO FORM A LAYER OF VERTICALLY ELONGATED CELLS COVERED BY A THIN SKIN, WHICH IS THEN REMOVED BY ABRASION.
Inventors
- 👤 G Harrington
- 👤 F Civardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:28
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0043; D06N3/005; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B27/00; B32B27/06; B32B27/065; B32B27/12; B32B27/30; B32B27/304; B32B5/02; B32B5/18; B32B5/20; D06N3/007; D06N3/0077; B32B38/00; B32B38/0012; B32B2038/0016; B32B2038/0052; B32B2038/0088; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; B32B2327/00; B32B2327/06; B32B2451/00; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S264/14; Y10S428/00; Y10S428/904; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1085; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249975; Y10T428/249987; Y10T428/249988; Y10T428/26; Y10T428/263; Y10T442/00; Y10T442/60; Y10T442/647; Y10T442/651
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |