Patent US4902581A successfully refreshed from Google Patents.
US4902581A
Expired / Lapsed
US
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Architectural coating with interference colors
Assignee: PPG Industries Ohio Inc
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Filing: 1984-12-17
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Granted: 1990-02-20
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Expires: 2004-12-17
Abstract
Abstract A transparent article for reflecting solar energy comprising a metal oxide film which exhibits color by absorption and interference effects and a highly reflective metal film is disclosed along with a sputtering method for its production.
Inventors
- 👤 Russell C. Criss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:17
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3607; C03C17/3613; C03C17/3626; C03C17/3642; C03C17/3652; C03C17/3657; C03C17/366; C03C17/3681; C23; C23C; C23C14/00; C23C14/0015; C23C14/06; C23C14/08; C23C14/085; C23C14/087; C23C14/14; C23C14/18; C23C14/22; C23C14/34; F; F24; F24S; F24S50/00; F24S50/80; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12611; Y10T428/12618; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
An article of manufacture for the reflectance of solar energy comprising: a. a transparent substrate; b. a transparent colored metal compound film which exhibits color by absorption and interference effects deposited on a surface of said substrate; and c. a highly infrared reflective transparent metallic film deposited on said metal compound film.
Claim 2
Dependent Claim
52 words
An article of manufacture for the reflectance of solar energy comprising: a. a transparent substrate; b. a transparent colored metal compound film which exhibits color by absorption and interference effects deposited on a surface of said substrate; and c. a highly infrared reflective transparent metallic film deposited on said metal compound film.
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 silver, gold, copper, aluminum and mixtures thereof.
Claim 5
Dependent Claim
26 words
An article of manufacture according to claim 3, wherein the metal is silver and which further comprises a transparent protective film deposited on the silver film.
Claim 6
Dependent Claim
32 words
An article according to claim 4, wherein the metal compound is selected from the group consisting of the oxides and nitrides of stainless steel, nickel alloys, copper, iron, cobalt and mixtures thereof.
Claim 7
Dependent Claim
15 words
An article according to claim 5, wherein the metal compound film comprises stainless steel oxide.
Claim 8
Dependent Claim
14 words
An article according to claim 6, wherein the transparent protective layer comprises stainless steel.
Claim 9
Dependent Claim
25 words
An article according to claim 7, wherein the stainless steel comprises about 68 percent iron, 17 percent chromium, 12 percent nickel and 2.25 percent molybdenum.
Claim 10
Dependent Claim
19 words
An article according to claim 7, wherein said article exhibits a gold color in reflectance from the glass surface.
Claim 11
Dependent Claim
18 words
An article according to claim 1, wherein said transparent metal compound and reflective metal films are sputtered films.
References Cited (Backward Citations)
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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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |