Patent US3384597A successfully refreshed from Google Patents.
US3384597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicate based laser glass
Assignee: Eastman Kodak Co
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Filing: 1964-08-27
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Granted: 1968-05-21
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Expires: 1984-08-27
Abstract
No abstract record available.
Inventors
- 👤 Paolis Paul F De
- 👤 Paul B Mauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:14
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17; C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C4/00; C03C4/0071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A GLASS LASER MATERIAL CONSISTING ESSENTIALLY OF, BY WEIGHT, BETWEEN 40% AND 60% SIO2, BETWEEN 3% AND 10% LI2O, BETWEEN 2% AND 20% NA2O, AT LEAST 5% OTHER CROWN GLASS CRYSTALLIZATION INHIBITING OXIDES AND BETWEEN .1% AND 20% OF AT LEAST ONE OXIDE AT LEAST ONE TYPE OF ACTIVATING ION SELECTED FROM THE GROUP CONSISTING OF ND2O3, HO2O3, YB2O3 AND TM2O3.
Claim 2
Dependent Claim
61 words
A GLASS LASER MATERIAL CONSISTING ESSENTIALLY OF, BY WEIGHT, BETWEEN 40% AND 60% SIO2, BETWEEN 3% AND 10% LI2O, BETWEEN 2% AND 20% NA2O, AT LEAST 5% OTHER CROWN GLASS CRYSTALLIZATION INHIBITING OXIDES AND BETWEEN .1% AND 20% OF AT LEAST ONE OXIDE AT LEAST ONE TYPE OF ACTIVATING ION SELECTED FROM THE GROUP CONSISTING OF ND2O3, HO2O3, YB2O3 AND TM2O3.
References Cited (Backward Citations)
US2224516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |