US4235634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored soda-lime glassware
Assignee: Corning Glass Works
•
Filing: 1979-09-27
•
Granted: 1980-11-25
•
Expires: 1999-09-27
Abstract
Abstract This invention is drawn to the production of thermally-tempered, transparent glass articles which are integrally colored to demonstrate a particular amber-with-rose-highlights hue. More definitively, the present invention is directed to narrowly-delineated glass compositions within the general Na 2 O-CaO-SiO 2 system having incorporated therein critically-limited amounts of NiO and MnO 2 as colorants.
Inventors
- 👤 David C. Boyd
- 👤 Paul S. Danielson
- 👤 Joseph Ference
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A transparent glass exhibiting an amber-with-rose-highlights hue and demonstrating a spectral transmittance curve approximating that depicted in the appended drawing consisting essentially, expressed in weight percent on the oxide basis is calculated from the batch, of about: ______________________________________
Na.sub.2 O
13.45 ± 0.15
CaO 9.6 ± 0.15
Al.sub.2 O.sub.3
1.65 ± 0.1
As.sub.2 O.sub.3
0.3 ± 0.02
NiO 0.04 ± 0.002
MnO.sub.2
0.48 ± 0.08
SiO.sub.2
Remainder
______________________________________
Claim 2
Dependent Claim
68 words
A transparent glass exhibiting an amber-with-rose-highlights hue and demonstrating a spectral transmittance curve approximating that depicted in the appended drawing consisting essentially, expressed in weight percent on the oxide basis is calculated from the batch, of about: ______________________________________
Na.sub.2 O
13.45 ± 0.15
CaO 9.6 ± 0.15
Al.sub.2 O.sub.3
1.65 ± 0.1
As.sub.2 O.sub.3
0.3 ± 0.02
NiO 0.04 ± 0.002
MnO.sub.2
0.48 ± 0.08
SiO.sub.2
Remainder
______________________________________
References Cited (Backward Citations)
US2282601A
Cited
US4116704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |