US3837866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low melting vanadate glasses
Assignee: Corning Glass Works
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Filing: 1972-04-24
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Granted: 1974-09-24
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Expires: 1992-04-24
Abstract
Abstract Glasses are disclosed that melt at low temperatures in the range of 500*-900*C. and that are composed essentially of 25-85 percent by weight vanadium oxide, 5-60 percent lead and/or cesium oxide, and 5-45 percent arsenic oxide. The glasses may be adapted either for encapsulating and sealing electrical elements, or for the fabrication of semiconducting elements.
Inventors
- 👤 J Malmendier
- 👤 J Sojka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:48
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/122; Y; Y10; Y10S; Y10S65/00; Y10S65/11; Y10S65/15
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
A low melting vanadate glass according to claim 1 wherein said composition also contains up to 15 percent by weight total of the following metals, expressed in terms of the stated oxide, B2O3, Sb2O3, Tl2O3, TeO2, SeO2, Ag2O, TiO2, Fe2O3, Bi2O3, HgO, BaO, and SnO2.
References Cited (Backward Citations)
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |