US3773529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-oxide glass
Assignee: AGC Glass Europe SA
•
Filing: 1971-07-01
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Granted: 1973-11-20
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Expires: 1991-07-01
Abstract
Abstract Non-oxide glass composition of BeTe 60%, TiS2 10 percent, Li2S 10 percent, K2S 10 percent and Cs2S 10 percent by weight.
Inventors
- 👤 E Plumat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:31
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/321
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
Glass having a composition which consists essentially of 60 percent by weight BeTe, 10 percent TiS2, 10 percent Li2S, 10 percent K2S and 10 percent Cs2S.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |