US4060422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing glass for glass laser
Assignee: Hoya Corp
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Filing: 1976-12-08
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Granted: 1977-11-29
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Expires: 1996-12-08
Abstract
Abstract A sealing glass for a glass laser having a composition comprising 45 to 65% by mole P 2 O 5 , 15 to 35% by mole ZnO, 5 to 25% by mole PbO, 4 to 12% by mole Li 2 O, 1 to 4% by mole Al 2 O 3 , 0 to 7% by mole Sb 2 O 3 , 0 to 5% by mole Ag 2 O, and 2.0 to 10% by mole V 2 O 5 , and having a low refractive index and capable of absorbing infrared rays.
Inventors
- 👤 Yoshiyuki Asahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:15
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/21; C03C27/00; C03C4/00; C03C4/08; C03C4/082; C03C8/00; C03C8/24; Y; Y10; Y10S; Y10S501/00; Y10S501/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A sealing glass for a glass laser comprising, in mole percent, 45 to 65% P 2 O 5 , 15 to 35% ZnO, 5 to 25% PbO, 4 to 12% Li 2 O, 1 to 4% Al 2 O 3 , 0 to 7% Sb 2 O 3 , 0 to 5% Ag 2 O, and 2.0 to 10% V 2 O 5 .
Claim 2
Dependent Claim
64 words
A sealing glass for a glass laser comprising, in mole percent, 45 to 65% P 2 O 5 , 15 to 35% ZnO, 5 to 25% PbO, 4 to 12% Li 2 O, 1 to 4% Al 2 O 3 , 0 to 7% Sb 2 O 3 , 0 to 5% Ag 2 O, and 2.0 to 10% V 2 O 5 .
References Cited (Backward Citations)
US3885974A
Cited
US3966447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |