US4708942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chalcogenide glass
Assignee: Nippon Sheet Glass Co Ltd
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Filing: 1986-12-12
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Granted: 1987-11-24
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Expires: 2006-12-12
Abstract
Abstract A chalcogenide glass having the following composition in atomic %: T1: 0.5-47 Ge: 5-41 Se: 2-58 Te: 5-75 T1+Ge+Se+Te: at least 80%.
Inventors
- 👤 Junji Nishiii
- 👤 Takashi Yamagishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:01
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/321
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
A chalcogenide glass having the following composition in atomic %: Tl: 0.5-47 Ge: 5-41 Se: 2-58 Te: 5-75 Tl+Ge+Se+Te: at least 80%.
Claim 2
Dependent Claim
22 words
A chalcogenide glass having the following composition in atomic %: Tl: 0.5-47 Ge: 5-41 Se: 2-58 Te: 5-75 Tl+Ge+Se+Te: at least 80%.
Claim 3
Dependent Claim
21 words
The chalcogenide glass of claim 1 having the following composition in atomic %: Tl: 1-20 Ge: 12-33 Se: 8-42 Te: 40-65.
Claim 4
Dependent Claim
33 words
The chalcogenide glass of claim 1 or 2 further containing the following components in atomic %: Sb: 0-20 Pb: 0-10 In: 0-5 Bi: 0-5 Sn: 0-5 Mg: 0-1 Sb+Pb+In+Bi+Sn+Mg: not more than 20%.
References Cited (Backward Citations)
US3348045A
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US3498930A
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US3440068A
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US3453583A
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US3511993A
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US3790250A
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JPS5988338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-23 | 1991-05-25 | 1991-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-23 | 1995-05-25 | 1995-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-23 | 1999-05-25 | 1999-11-24 | $7700.00 | Window Closed / Lapsed |