US4312909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating material of metal film bonded to non-woven glass fabric with ethylene/vinyl acetate copolymer adhesive
Assignee: Individual
•
Filing: 1980-08-18
•
Granted: 1982-01-26
•
Expires: 2000-08-18
Abstract
Abstract A laminated insulating material comprised of a metal foil sheet bonded to a non-woven glass fiber paper-like sheet by a latex acrylic adhesive.
Inventors
- 👤 Julius Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:43
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/14; B32B15/20; B32B17/00; B32B17/02; B32B5/00; B32B5/02; B32B5/022; B32B7/00; B32B7/04; B32B7/12; B32B2262/00; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/20; B32B2307/206; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31678; Y10T428/31692; Y10T442/00; Y10T442/60; Y10T442/654; Y10T442/656
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A laminate for use in insulation of electrical apparatuses comprising: a metal foil sheet such as aluminum foil, having a thickness of between 0.0007 in. and 0.001 in.; a non-woven glass fiber paper-like sheet having a thickness of between 0.015 in. and 0.070 in.; and a plasticized ethylene vinyl acetate co-polymer emulsion-type adhesive bonding said metal foil sheet to said non-woven glass fiber paper-like sheet.
Claim 2
Dependent Claim
65 words
A laminate for use in insulation of electrical apparatuses comprising: a metal foil sheet such as aluminum foil, having a thickness of between 0.0007 in. and 0.001 in.; a non-woven glass fiber paper-like sheet having a thickness of between 0.015 in. and 0.070 in.; and a plasticized ethylene vinyl acetate co-polymer emulsion-type adhesive bonding said metal foil sheet to said non-woven glass fiber paper-like sheet.
References Cited (Backward Citations)
US2706699A
Cited
US3262192A
Cited
US3902951A
Cited
US3769146A
Cited
US3810816A
Cited
US4119479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |