Patent US3150212A successfully refreshed from Google Patents.
US3000761A
Expired / Lapsed
US
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Method of staining borosilicate glass and resultant article
Assignee: Verd-A-Ray Processing Co
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Filing: 1957-11-04
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Granted: 1961-09-19
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Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Ormonde S Levi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/06; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/251; C03C2218/00; C03C2218/10; C03C2218/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR STAINING A BOROSILICATE GLASS WHICH IS SUBSTANTIALLY COMPLETELY FREE OF ARSENIC, WHICH METHOD COMPRISES APPLYING TO SUCH GLASS A DISPERSION WHICH CONSISTS ESSENTIALLY OF COPPER SULFIDE, SILVER SULFIDE AND A DISPERSING MEDIUM, THE COPPER SULFIDE CONSTITUTING AT LEAST 10 PERCENT OF THE DISPERSION, AND SILVER SULFIDE CONSTITUTING AT LEAST 5 PERCENT OF THE DISPERSION, BASED UPON THE TOTAL WEIGHT OF COPPER SULFIDE AND SILVER SULFIDE, AND FIRING THE GLASS AND APPLIED DISPERSION IN AIR TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT STAINING OF THE GLASS.
Claim 2
Independent Claim
88 words
A METHOD FOR STAINING A BOROSILICATE GLASS WHICH IS SUBSTANTIALLY COMPLETELY FREE OF ARSENIC, WHICH METHOD COMPRISES APPLYING TO SUCH GLASS A DISPERSION WHICH CONSISTS ESSENTIALLY OF COPPER SULFIDE, SILVER SULFIDE AND A DISPERSING MEDIUM, THE COPPER SULFIDE CONSTITUTING AT LEAST 10 PERCENT OF THE DISPERSION, AND SILVER SULFIDE CONSTITUTING AT LEAST 5 PERCENT OF THE DISPERSION, BASED UPON THE TOTAL WEIGHT OF COPPER SULFIDE AND SILVER SULFIDE, AND FIRING THE GLASS AND APPLIED DISPERSION IN AIR TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT STAINING OF THE GLASS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |