Patent US3928050A successfully refreshed from Google Patents.
US3928050A
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US
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Colored glass compositions
Assignee: OI Glass Inc
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Filing: 1973-03-01
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Granted: 1975-12-23
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Expires: 1993-03-01
Abstract
Abstract Champagne green glass compositions based on the soda-lime-silica system containing chrome and manganese and cobalt which act together to produce a desired deep coloration in the glass. The chrome functions to maintain the manganese in its highest oxidation valence state.
Inventors
- 👤 John Jasinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:51
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/10; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/087; C03C4/00; C03C4/08; C03C4/085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A METHOD OF MAKING A CHAMPAGNE GREEN COLORED GLASS WHICH COMPRISES ADDING TO A COLORLESS FLINT GLASS IN THE FOREHEARTH A MIXTURE OF COLORANT OXIDES CONSISTING OF 0.03% TO 0.15% CR2O3, 0.01% TO 0.04% MNO AND 0.005% TO 0.015% COO BASED ON THE WEIGHT OF THE COMPOSITE GLASS, WHEREBY THE COMPOSITE GLASS HAS C.I.E. CHARACTERISTICS FOR A TEN MILLIMETER THICKNESS FALLING WITHIN THE FOLLOWING RANGES:
Claim 2
Independent Claim
65 words
A METHOD OF MAKING A CHAMPAGNE GREEN COLORED GLASS WHICH COMPRISES ADDING TO A COLORLESS FLINT GLASS IN THE FOREHEARTH A MIXTURE OF COLORANT OXIDES CONSISTING OF 0.03% TO 0.15% CR2O3, 0.01% TO 0.04% MNO AND 0.005% TO 0.015% COO BASED ON THE WEIGHT OF THE COMPOSITE GLASS, WHEREBY THE COMPOSITE GLASS HAS C.I.E. CHARACTERISTICS FOR A TEN MILLIMETER THICKNESS FALLING WITHIN THE FOLLOWING RANGES:
Claim 3
Dependent Claim
24 words
A method defined in claim 1 wherein the composite glass has a C.I.E. characteristic for a ten millimeter thickness falling within the following range:
Claim 4
Dependent Claim
48 words
A Champagne Green colored glass container formed of a flint glass having present as colorant ingredients a mixture consisting of 0.03% to 0.15% Cr2O3, 0.01% to 0.04% MnO and 0.005% to 0.015% CoO, whereby the glass container has the following C.I.E. characteristics measured through 10 mm glass thickness:
Claim 5
Dependent Claim
48 words
A Champagne Green colored glass container formed of a flint glass having present as colorant ingredients a mixture consisting of 0.03% to 0.15% Cr2O3, 0.01% to 0.04% MnO and 0.005% to 0.015% CoO, whereby the glass container has the following C.I.E. characteristics measured through 10 mm glass thickness:
Claim 6
Dependent Claim
41 words
A colored glass container as defined in claim 3, wherein the colorant ingredients consist of 0.065% to 0.075% Cr2O3, 0.015% to 0.025% MnO and 0.006% to 0.012% CoO, and which has the following C.I.E. characteristic measured through 10 mm glass thickness:
References Cited (Backward Citations)
US1411134A
Cited
US2923636A
Cited
US3024120A
Cited
US3024121A
Cited
US3364041A
Cited
US3364042A
Cited
US3482955A
Cited
US3545952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |