US4276347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced resinous laminate
Assignee: Takeda Sangyo Co Ltd
•
Filing: 1979-08-20
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Granted: 1981-06-30
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Expires: 1999-08-20
Abstract
Abstract A reinforced resinous laminate comprising at least two strips of thermoplastic film, at least one annealed aluminum foil interlaid between the strips, and adherent coating on either surface of the metal foil to bond the annealed aluminum foil and the strips together. The strips of thermoplastic film are oriented monoaxially and have the directions of orientation at an angle each other.
Inventors
- 👤 Koji Shimada
- 👤 Seiji Koike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:42
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/085; B32B15/20; B32B27/00; B32B27/32; B32B7/00; B32B7/04; B32B7/12; B32B2305/00; B32B2305/08; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/7246; B32B2311/00; B32B2311/14; B32B2311/24; B32B2323/00; B32B2323/04; B32B2323/043; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
79 words
A reinforced laminate comprising two strips of polyethylene film, a strip of annealed aluminum foil of between about 7 to 15 microns in thickness interlaid between the strips, an adherent coating on both surfaces of the annealed aluminum foil to bond the annealed aluminum foil and the polyethylene strips together, the polyethylene strips each being oriented at an angle of 45 degrees to the longitudinal direction of the laminate and forming a ninety degree angle relative to one another.
Claim 2
Dependent Claim
79 words
A reinforced laminate comprising two strips of polyethylene film, a strip of annealed aluminum foil of between about 7 to 15 microns in thickness interlaid between the strips, an adherent coating on both surfaces of the annealed aluminum foil to bond the annealed aluminum foil and the polyethylene strips together, the polyethylene strips each being oriented at an angle of 45 degrees to the longitudinal direction of the laminate and forming a ninety degree angle relative to one another.
Claim 3
Dependent Claim
31 words
The laminate of claim 1 wherein the thickness of the aluminum foil is about 7 microns and the thickness of each of said strips of polyethylene film is about 45 microns.
References Cited (Backward Citations)
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Cited
US4064302A
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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) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |