Patent US3580859A successfully refreshed from Google Patents.
US3580859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active material for lasers
Assignee: Individual
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Filing: 1967-12-20
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Granted: 1971-05-25
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Expires: 1987-12-20
Abstract
Abstract LASER GLASSES CONSISTING OF 30-90 WT. PERCENT OF P2O5; 2-40 WT. PERCENT OF EACH OF NA2O AND LI2O; 1-6 WT. PERCENT ND2O3 AND ADDITIVES OF ALUMINUM OXIDES OR HALIDES, HALIDES OF TIN AND IONS OF CU, MN, CR, U AND AG; THE TOTAL AMOUNT OF SAID ADDITIVES BEING NOT MORE THAN 20 WT. PERCENT.
Inventors
- 👤 Igor Mikhailovich Buzhinsky
- 👤 Mark Efremovich Zhabotinsky
- 👤 Jury Petrovich Rudnitsky
- 👤 Vadim Vasilievich Tsapkin
- 👤 Irma Vyacheslavovna Tsapkina
- 👤 Georgy Vladimirovich Ellert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:28
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/23; C03C3/16; C03C3/247; C03C4/00; C03C4/0071; H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17
Claims Analysis
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |