US3816201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated structures and method of forming the same
Assignee: Sierracin Corp
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Filing: 1973-02-22
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Granted: 1974-06-11
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Expires: 1993-02-22
Abstract
Abstract Flexible sublaminates suitable for lamination between rigid transparent dielectric plies to form electrically powerable transparent safety glass-type constructions are prepared by first disposing on at least one surface of a carrier film a thin, adherent electrically conductive metallic coating and subsequently laminating to the metal-coated surface an interlayer film to form a flexible coherent laminar structure transparent when its exterior surfaces are smooth. Carrier films employed have an ultimate elongation of less than about 150 percent and tensile strength greater than about 5000 psi; interlayer films have ultimate elongation greater than about 150 percent and tensile strength less than about 6500 psi. Exemplary conductive metals are gold, silver, chromium, copper, and Inconel.
Inventors
- 👤 R Armstrong
- 👤 H Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:32
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/36; H05B2203/00; H05B2203/013
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
37 words
The method of claim 1 wherein in step C a second interlayer film is interposed between one of said plies and the exposed surface of said carrier film prior to lamination of said plies to said structure.
Claim 2
Dependent Claim
15 words
The method of claim 1 wherein but one surface of the carrier film is metal-coated.
Claim 3
Dependent Claim
20 words
The method of claim 3 wherein an interlayer film is laminated only to the metal-coated surface of the carrier film.
Claim 4
Dependent Claim
41 words
The method of claim 3 wherein a second interlayer film is laminated to the surface of the carrier film opposite the metal-coated surface thereof such that the non-adhered surfaces of the interlayer films present the exterior surfaces to the sublaminar structure.
Claim 5
Dependent Claim
30 words
The method of claim 5 wherein the interlayer films present textured exterior surfaces which are adapted to be made smooth by said further lamination of said structure between said plies.
Claim 6
Dependent Claim
35 words
The method of claim 1 wherein the said carrier film is a polyethylene terephthalate polyester film and wherein said interlayer film is selected from the group consisting of polyvinyl butral, polyvinyl chloride and polyurethane films.
Claim 7
Dependent Claim
51 words
The method of claim 1 wherein the said carrier film has an ultimate elongation of less than about 150 percent and tensile strength greater than about 5,000 psi, and wherein said interlayer film has an ultimate elongation of greater than about 150 percent and tensile strength less than about 6,000 psi.
Claim 8
Dependent Claim
22 words
The method of claim 7 wherein said conductive metal is selected from the group consisting of gold, silver, chromium, copper and Inconel.
Claim 9
Dependent Claim
22 words
The method of claim 8 wherein said conductive metal is selected from the group consisting of gold, silver, chromium, copper and Inconel.
Claim 10
Dependent Claim
12 words
The method of claim 9 wherein said interlayer film is polyvinyl butyral.
Claim 11
Dependent Claim
11 words
The method of claim 9 wherein said conductive metal is gold.
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |