Patent US5112693A successfully refreshed from Google Patents.
US5112693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low reflectance, highly saturated colored coating for monolithic glazing
Assignee: PPG Industries Ohio Inc
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Filing: 1988-10-03
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Granted: 1992-05-12
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Expires: 2008-10-03
Abstract
Abstract A transparent article for reflecting solar energy comprising a zinc/tin oxide film which exhibits color by interference effects and a reflective metal film preferably comprising chromium is disclosed along with a sputtering method for its production.
Inventors
- 👤 Frank H. Gillery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:39
CPC Classifications
C; C03; C03C; C03C27/00; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3607; C03C17/3411; C03C17/3417; C03C17/3423; C03C17/3429; C03C17/3435; C03C17/361; C03C17/3626; C03C17/3649; C03C17/3657; C03C17/366; C03C17/3681; C03C2217/00; C03C2217/70; C03C2217/78; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
An article of manufacture for the reflectance of solar energy comprising: a. a transparent substrate; b. a transparent metal oxide film comprising zinc and tin of a thickness which exhibits intense color by interference effects deposited on a surface of said substrate; and c. a reflective transparent metallic film deposited on said metal oxide film wherein the combination of colored metal oxide and reflective metallic films forms a reflective coating of relatively saturated color.
Claim 2
Dependent Claim
74 words
An article of manufacture for the reflectance of solar energy comprising: a. a transparent substrate; b. a transparent metal oxide film comprising zinc and tin of a thickness which exhibits intense color by interference effects deposited on a surface of said substrate; and c. a reflective transparent metallic film deposited on said metal oxide film wherein the combination of colored metal oxide and reflective metallic films forms a reflective coating of relatively saturated color.
Claim 3
Dependent Claim
13 words
An article of manufacture according to claim 1, wherein the substrate is glass.
Claim 4
Dependent Claim
29 words
An article of manufacture according to claim 2, wherein the reflective metallic film comprises a metal selected from the group consisting of chromium, titanium, stainless steel and nickel alloys.
Claim 5
Dependent Claim
34 words
An article of manufacture according to claim 3, wherein the reflective metallic film is selected from the group consisting of chromium metal, chromium oxide, chromium nitride, titanium metal, titanium nitride, stainless steel and Inconel.
Claim 6
Dependent Claim
14 words
An article according to claim 4, wherein the reflective metallic film is chromium nitride.
Claim 7
Dependent Claim
55 words
An article comprising: a. a transparent substrate; b. a transparent metal oxide film comprising zinc and tin of a thickness which exhibits color by interference effects; c. a reflective transparent metallic film deposited on said metal oxide film; and d. a second transparent reflective metallic film deposited between the substrate and the metal oxide film.
Claim 8
Dependent Claim
55 words
An article comprising: a. a transparent substrate; b. a transparent metal oxide film comprising zinc and tin of a thickness which exhibits color by interference effects; c. a reflective transparent metallic film deposited on said metal oxide film; and d. a second transparent reflective metallic film deposited between the substrate and the metal oxide film.
Claim 9
Dependent Claim
29 words
An article according to claim 6, wherein the second transparent reflective metallic film comprises a metal selected from the group consisting of chromium, titanium, stainless steel and nickel alloys.
Claim 10
Dependent Claim
32 words
An article according to claim 7, wherein said second metallic film is selected from the group consisting of chromium metal, chromium oxide, chromium nitride, titanium metal, titanium nitride, stainless steel and Inconel.
Claim 11
Dependent Claim
14 words
An article according to claim 8, wherein said second metallic film is chromium nitride.
Claim 12
Dependent Claim
28 words
An article according to claim 1, wherein the thickness of said transparent film of metal oxide is sufficient for the coated article to exhibit a blue interference color.
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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) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |