US3795567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum foil wall covering
Assignee: WINFIELD DESIGN ASS Inc
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Filing: 1971-08-27
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Granted: 1974-03-05
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Expires: 1991-08-27
Abstract
Abstract A paper backed aluminum foil wall covering contains a thin layer of polyethylene film between the aluminum foil sheet and the paper backing. The polyethylene film laminates the foil to the paper and serves as a moisture barrier to prevent water from the paste used in hanging the wall covering from contacting the back side of the foil. The film adheres to only the surface fibers on a smooth surface of the paper backing to permit the foil and polyethylene film to be stripped as a unit from the paper backing after the wall covering has been installed.
Inventors
- 👤 H Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/20; D21H11/00; D21H11/02; D21H11/04; D21H23/00; D21H23/02; D21H23/22; D21H23/46; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |