US3652302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antimony borate glass compositions
Assignee: GENE I THOMASSON
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Filing: 1970-11-23
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Granted: 1972-03-28
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Expires: 1990-11-23
Abstract
Abstract A glass for sealing metallic lead-in conductors in fused silica comprising a low melting antimony borate glass which preferably contains a small amount of molybdenum trioxide and which forms, at elevated temperatures, a molten seal surrounding the conductor.
Inventors
- 👤 Victor A Levand Jr
- 👤 Gene I Thomasson
- 👤 Richard H Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:46
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/24; C03C27/00; C03C27/04; C03C27/042; C03C27/044; C03C3/00; C03C3/12; C03C3/14; H; H01; H01K; H01K1/00; H01K1/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
20 words
A glass as in claim 1 and consisting essenti-ally, by weight, of approximately 65% Sb2O3, 30% B2O3 and 5% Mo03.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |