US3853568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glasses with high content of silver oxide
Assignee: OI Glass Inc
•
Filing: 1972-08-03
•
Granted: 1974-12-10
•
Expires: 1992-08-03
Abstract
Abstract Glasses having a high content of silver oxide are described. Generally these glasses contain at least 20%, and up to as high as 70% silver oxide expressed as Ag2O. The glasses also contain a metal oxide of one of the metals, vanadium (V), tungsten (W), molybdenum (Mo), uranium (U) or manganese (Mn), and an oxide of one of the metalloids; viz. boron (B), phosphorous (P), germanium (Ge), arsenic (As), antimony (Sb), bismuth (Bi) or tellurium (Te). Alternatively, the glasses may contain in addition to the Ag2O component, a mixture of oxides of the above transition elements. The glasses are produced by forming a melt using silver in the form of AgNO3 to thereby enable formation of glasses which may have considerable quantities of Ag2O without precipitating the silver out in the metallic form. The glass compositions are characterized by low melting and low softening temperatures, high density, high refractive index, good infrared transmission characteristics and water resistance. Uses for the glasses include fiber optics, condensers, and glazes for substrates for microelectronic circuits.
Inventors
- 👤 T Chvatal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
C; C03; C03C; C03C29/00; C03C27/00; C03C3/00; C03C3/12; C03C3/122; C03C3/127; C03C3/14; C03C3/16; C03C3/19; C03C3/21; C03C3/253; Y; Y10; Y10S; Y10S501/00; Y10S501/90
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
A GLASS COMPOSITION CONSISTING ESSENTIALLY OF THE FOLLOWING COMPONENTS, EXPRESSED IN WEIGHT PRECENT OF THE TOTAL OXIDES IN THE COMPOSITIONS, SELECTED FROM THE GROUP CONSISTING OF: A. SILVER OXIDE 20-70%, 10 TO 70% OF AN OXIDE OF A TRANSITIONAL METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, URANIUM AND MANGANESE AND 10 TO 70% OF AN OXIDE OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, PHOSPHOROUS, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM; B. SILVER OXIDE 20-70% AND 30 TO 80% OF A TWO-COMPONENT MIXTURE OF OXIDES OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, PHOSPHOROUS, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM, AND C. SILVER OXIDE 20-70%, TO 10 TO 70% OF MOLYBDENUM OXIDE OR VANADIUM OXIDE AND 10 TO 70% OF AN OXIDE OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM.
Claim 2
Dependent Claim
143 words
A GLASS COMPOSITION CONSISTING ESSENTIALLY OF THE FOLLOWING COMPONENTS, EXPRESSED IN WEIGHT PRECENT OF THE TOTAL OXIDES IN THE COMPOSITIONS, SELECTED FROM THE GROUP CONSISTING OF: A. SILVER OXIDE 20-70%, 10 TO 70% OF AN OXIDE OF A TRANSITIONAL METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, URANIUM AND MANGANESE AND 10 TO 70% OF AN OXIDE OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, PHOSPHOROUS, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM; B. SILVER OXIDE 20-70% AND 30 TO 80% OF A TWO-COMPONENT MIXTURE OF OXIDES OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, PHOSPHOROUS, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM, AND C. SILVER OXIDE 20-70%, TO 10 TO 70% OF MOLYBDENUM OXIDE OR VANADIUM OXIDE AND 10 TO 70% OF AN OXIDE OF A METALLOID SELECTED FROM THE GROUP CONSISTING OF BORON, GERMANIUM, ARSENIC, ANTIMONY, BISMUTH AND TELLURIUM.
Claim 3
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 4
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 5
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide compositions:
Claim 6
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 7
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 8
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 9
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 10
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 11
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 12
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 13
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 14
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 15
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 16
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 17
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 18
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 19
Dependent Claim
20 words
A glass composition as defined in claim 1 consisting essentially of the following ingredients based on the total oxide composition:
Claim 20
Dependent Claim
9 words
An article formed of the composition of claim 1.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |