US3627622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial resin coated foamed resinous articles
Assignee: Dow Chemical Co
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Filing: 1967-09-29
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Granted: 1971-12-14
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Expires: 1987-09-29
Abstract
Abstract An open-celled foam body is prepared, having at least one rigid surface, by impregnating one surface of an open-celled foam with a hardenable resinous material, hardening the resin to provide a foam structure having a rigid portion and a flexible portion.
Inventors
- 👤 Guadalupe Vega
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:40
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2463/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249982; Y10T428/249987; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31855; Y10T428/31859; Y10T428/31877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
The body of claim 1 wherein the body has two major surfaces and the portion adjacent each of the major surfaces having the hardened resin thereon and an area lying between the major surfaces having no hardened resin.
Claim 2
Dependent Claim
16 words
The body of claim 2 having rigid impermeable skins adhered to each of the major surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |