Patent US5361172A successfully refreshed from Google Patents.
US5361172A
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Durable metallized polymer mirror
Assignee: Midwest Research Institute
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Filing: 1993-01-21
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Granted: 1994-11-01
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Expires: 2013-01-21
Abstract
Abstract A metallized polymer mirror construction having improved durability against delamination and tunneling, comprising: an outer layer of polymeric material; a metal oxide layer underlying the outer layer of polymeric material; a silver reflective layer underneath the metal oxide layer; and a layer of adhesive attaching the silver layer to a substrate.
Inventors
- 👤 Paul O. Schissel
- 👤 Cheryl E. Kennedy
- 👤 Gary J. Jorgensen
- 👤 Yvonne D. Shinton
- 👤 Rita M. Goggin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:37
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B5/0816; G02B5/085; G02B5/0858; G02B5/0866; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12549; Y10T428/12556; Y10T428/12569; Y10T428/12611
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
A metallized polymer mirror construction having improved durability against delamination and tunneling, consisting essentially of: an outer layer of a polymeric material: a metal oxide layer underlying said outer layer of polymeric material; a silver reflective layer of between about 700 to about 1000 angstroms thickness underneath said metal oxide layer; an adhesive layer attaching said silver reflective layer to a substrate; and a copper layer disposed between said adhesive layer and said silver reflective layer.
Claim 2
Dependent Claim
76 words
A metallized polymer mirror construction having improved durability against delamination and tunneling, consisting essentially of: an outer layer of a polymeric material: a metal oxide layer underlying said outer layer of polymeric material; a silver reflective layer of between about 700 to about 1000 angstroms thickness underneath said metal oxide layer; an adhesive layer attaching said silver reflective layer to a substrate; and a copper layer disposed between said adhesive layer and said silver reflective layer.
Claim 3
Dependent Claim
15 words
The mirror construction of claim 1, wherein the polymeric material is an acrylic polymeric material.
Claim 4
Dependent Claim
13 words
The mirror construction of claim 2, wherein the acrylic polymeric material is polymethylmethacrylate.
Claim 5
Dependent Claim
23 words
The mirror construction of claim 3, wherein said metal oxide layer is selected from the group consisting of aluminum oxide and silicon oxide.
Claim 6
Dependent Claim
47 words
The mirror construction of claim 4, wherein a copper layer is disposed between said adhesive layer and said silver reflective layer, and wherein said metal oxide comprises aluminum oxide, and wherein the thicknesses of the aluminum oxide and copper layers are 50-200 angstroms and 500-1500 angstroms respectively.
Claim 7
Dependent Claim
32 words
The mirror construction of claim 1, wherein said metal oxide comprises an aluminum oxide, and wherein the thicknesses of the aluminum oxide and copper layers are 200 angstroms and 1500 angstroms respectively.
Claim 8
Dependent Claim
15 words
The mirror construction of claim 6, wherein the polymeric material is an acrylic polymeric material.
Claim 9
Dependent Claim
13 words
The mirror construction of claim 7, wherein the acrylic polymeric material is polymethylmethacrylate.
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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) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |