Patent US3810808A successfully refreshed from Google Patents.
US3810808A
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US
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Apparatus for making plastic sheet material
Assignee: CONNECTICUT YANKEE COMMUNITY AVENUE
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Filing: 1971-09-16
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Granted: 1974-05-14
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Expires: 1991-09-16
Abstract
Abstract The invention contemplates apparatus for manufacture of expanded-plastic sheet material, wherein an outer skin is removed by heat-skiving, to present a velvety texture. The apparatus uses a heated drum to impart a temperature gradient in the region of skin to be removed. The apparatus produces which is directly usable, or the product may be further processed to add a special outer skin. In latter case, the heat-skiving function of the apparatus is found to impart richness to the "feel" of the product.
Inventors
- 👤 A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B27/00; B32B27/06; B32B27/065; B32B27/30; B32B38/00; B32B38/06; D; D06; D06N; D06N3/00; D06N3/007; D06N3/0075; D06N3/0077; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1039; Y10T156/1041; Y10T156/1052; Y10T156/1059; Y10T156/11; Y10T156/1153; Y10T156/12; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T156/19; Y10T156/1961; Y10T156/1967; Y10T156/1972; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/249921; Y10T428/249953
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |