US3411934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing tin oxide-cobalt oxide plural layers on glass articles
Assignee: PPG Industries Inc
•
Filing: 1964-04-15
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Granted: 1968-11-19
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Oscar D Englehart
- 👤 Joseph E Michelotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:55
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/3411; C03C17/3417; C03C17/22; C03C17/23; C03C17/25; C07; C07C; C07C49/00; C07C49/92; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/217; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF PREPARING GLASS PRODUCTS OF REDUCED RADIANT SOLAR ENERGY TRANSMITTANCE WHICH COMPRISES HEATING THE GLASS TO A TEMPERATURE OF AT LEAST 400*F. BUT BELOW THE GLASS SOFTENING TEMPERATURE, FORMING A TRANSPARENT TIN OXIDE COATING ON SAID HEATED GLASS, AND CONTACTING THE TIN OXIDE SURFACE OF SAID HEATED TIN OXIDE COATED GLASS WITH A SOLUTION OF COBALT ACETYLACETONATE TO FORM A TRANSPARENT COBALT OXIDE COATING THEREON.
Claim 2
Independent Claim
67 words
A METHOD OF PREPARING GLASS PRODUCTS OF REDUCED RADIANT SOLAR ENERGY TRANSMITTANCE WHICH COMPRISES HEATING THE GLASS TO A TEMPERATURE OF AT LEAST 400*F. BUT BELOW THE GLASS SOFTENING TEMPERATURE, FORMING A TRANSPARENT TIN OXIDE COATING ON SAID HEATED GLASS, AND CONTACTING THE TIN OXIDE SURFACE OF SAID HEATED TIN OXIDE COATED GLASS WITH A SOLUTION OF COBALT ACETYLACETONATE TO FORM A TRANSPARENT COBALT OXIDE COATING THEREON.
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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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |