Patent US4891113A successfully refreshed from Google Patents.
US4891113A
Expired / Lapsed
US
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Method of making architectural coating with interference colors
Assignee: PPG Industries Ohio Inc
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Filing: 1986-05-19
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Granted: 1990-01-02
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Expires: 2006-05-19
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 11:02
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; C23C28/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
A method of making a solar energy reflecting coated article comprising the steps of: a. sputtering onto a surface of a substrate a first transparent coating of a metal compound which exhibits color by absorption and interference effects; b. sputtering a highly infrared reflective transparent metallic film on said colored metal compound coating; and c. sputtering a transparent protective metal film on said infrared reflective metallic film.
Claim 2
Independent Claim
67 words
A method of making a solar energy reflecting coated article comprising the steps of: a. sputtering onto a surface of a substrate a first transparent coating of a metal compound which exhibits color by absorption and interference effects; b. sputtering a highly infrared reflective transparent metallic film on said colored metal compound coating; and c. sputtering a transparent protective metal film on said infrared reflective metallic film.
Claim 3
Dependent Claim
17 words
A method according to claim 1, wherein said substrate is glass and said sputtering is magnetically enhanced.
Claim 4
Dependent Claim
39 words
A method according to claim 2, wherein said metal compound comprises a metal oxide deposited by sputtering a metal selected from the group consisting of stainless steel, nickel alloys, copper, iron, cobalt and mixtures thereof in an oxidizing atmosphere.
Claim 5
Dependent Claim
22 words
A method according to claim 3, wherein stainless steel is sputtered in an oxidizing atmosphere to form a stainless steel oxide film.
Claim 6
Dependent Claim
33 words
A method according to claim 4, wherein said metallic film is deposited by sputtering a metal selected from the group consisting of silver, gold, copper, aluminum and mixtures thereof in an inert atmosphere.
Claim 7
Dependent Claim
15 words
A method according to claim 5, wherein silver is sputtered in an atmosphere comprising argon.
Claim 8
Dependent Claim
18 words
A method according to claim 6, wherein a transparent protective metal film is deposited on said silver film.
Claim 9
Dependent Claim
20 words
A method according to claim 7, wherein a transparent protective film comprising stainless steel is deposited on said silver film.
Claim 10
Dependent Claim
20 words
A method according to claim 8, wherein the protective film is deposited by sputtering stainless steel in an inert atmosphere.
Claim 11
Dependent Claim
40 words
A method according to claim 9, wherein the stainless steel oxide film and stainless steel protective film are both deposited by sputtering of stainless steel comprising about 68 percent iron, 17 percent chromium, 12 percent nickel and 2.25 percent molybdenum.
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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) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |