US4478905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spandrel product with silicate coating
Assignee: PPG Industries Ohio Inc
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Filing: 1982-11-22
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Granted: 1984-10-23
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Expires: 2002-11-22
Abstract
Abstract A spandrel product is disclosed wherein the opaque coating is formulated from an alkali silicate composition cured with an inorganic hardener.
Inventors
- 👤 James E. Neely, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:34
CPC Classifications
C; C09; C09D; C09D1/00; C09D1/02; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C09J; C09J1/00; C09J1/02; E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66333; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
38 words
An article of manufacture comprising: a. a rigid substrate; and b. disposed on a major surface of said substrate an opaque coating composition comprising: 1. an alkali silicate; and 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
Claim 2
Dependent Claim
38 words
An article of manufacture comprising: a. a rigid substrate; and b. disposed on a major surface of said substrate an opaque coating composition comprising: 1. an alkali silicate; and 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
Claim 3
Dependent Claim
19 words
An article according to claim 1, wherein the alkali silicate is a mixture of sodium silicate and potassium silicate.
Claim 4
Dependent Claim
24 words
An article according to claim 1, wherein the composition further comprises a component selected from the group consisting of pigments, fillers and mixtures thereof.
Claim 5
Dependent Claim
23 words
An article according to claim 3, wherein said component comprises a filler selected from the group consisting of mica, talc and mixtures thereof.
Claim 6
Dependent Claim
16 words
An article according to claim 4, wherein said filler comprises mica coated with a metal oxide.
Claim 7
Dependent Claim
30 words
An article according to claim 5, wherein said mica filler is coated with the oxide of a metal selected from the group consisting of titanium, iron, chromium and mixtures thereof.
Claim 8
Dependent Claim
12 words
An article according to claim 6, wherein said composition comprises black pigment.
Claim 9
Dependent Claim
23 words
An article according to claim 7, wherein the amounts of pigment and filler are sufficient to produce a coating with a metallic appearance.
Claim 10
Dependent Claim
38 words
An article of manufacture comprising: a. a glass substrate; and b. disposed on a major surface of said substrate an opaque coating composition comprising: 1. an alkali silicate; and 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
Claim 11
Dependent Claim
38 words
An article of manufacture comprising: a. a glass substrate; and b. disposed on a major surface of said substrate an opaque coating composition comprising: 1. an alkali silicate; and 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
Claim 12
Dependent Claim
19 words
An article according to claim 9, wherein the alkali silicate is a mixture of sodium silicate and potassium silicate.
Claim 13
Dependent Claim
24 words
An article according to claim 13, wherein the composition further comprises a component selected from the group consisting of pigments, fillers and mixtures thereof.
Claim 14
Dependent Claim
23 words
An article according to claim 11, wherein said component comprises a filler selected from the group consisting of mica, talc and mixtures thereof.
Claim 15
Dependent Claim
16 words
An article according to claim 12, wherein said filler comprises mica coated with a metal oxide.
Claim 16
Dependent Claim
30 words
An article according to claim 13, wherein said mica filler is coated with the oxide of a metal selected from the group consisting of titanium, iron, chromium and mixtures thereof.
Claim 17
Dependent Claim
12 words
An article according to claim 14, wherein said composition comprises black pigment.
Claim 18
Dependent Claim
23 words
An article according to claim 15, wherein the amounts of pigment and filler are sufficient to produce a coating with a metallic appearance.
References Cited (Backward Citations)
US2662022A
Cited
US3087827A
Cited
US3087829A
Cited
US3087828A
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US3178299A
Cited
US3445257A
Cited
US3454410A
Cited
US3930876A
Cited
US3943231A
Cited
US3951525A
Cited
US3869198A
Cited
US3919023A
Cited
US4173668A
Cited
US4205104A
Cited
US4149348A
Cited
US4288252A
Cited
US4312673A
Cited
US4334941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |