US4477580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making germanium-silicate gel glass and articles
Assignee: Nokia Bell Labs
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Filing: 1982-09-28
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Granted: 1984-10-16
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Expires: 2002-09-28
Abstract
Abstract Optical components using a germania-silica glass are made by a gel technique. Tetra pentyloxygermane and a silicon alkoxide are hydrolyzed to form a gel, which is subsequently dried. Optical components, including optical fibers and devices, can be made using glass prepared by this technique.
Inventors
- 👤 James W. Fleming, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:46
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/006; C03B; C03B37/00; C03B37/01; C03B37/012; C03B37/014; C03B37/016; C03C13/00; C03C13/04; C03C13/045; C03C3/00; C03C3/04; C03B2201/00; C03B2201/06; C03B2201/30; C03B2201/31; Y; Y10; Y10S; Y10S65/00; Y10S65/901
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
33 words
A method of making an article comprising a germanium-containing silicate glass characterized by steps comprising forming a gel substantially comprising hydrolyzed tetra pentyloxygermane and a hydrolyzed silicon alkoxide, and substantially drying said gel.
Claim 2
Independent Claim
33 words
A method of making an article comprising a germanium-containing silicate glass characterized by steps comprising forming a gel substantially comprising hydrolyzed tetra pentyloxygermane and a hydrolyzed silicon alkoxide, and substantially drying said gel.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said silicon alkoxide is tetraethylorthosilicate.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein said gel is formed with less than 4 moles of H 2 O per mole of metal alkoxides.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein said article is an optical component.
References Cited (Backward Citations)
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Cited
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |