Patent US3405371A successfully refreshed from Google Patents.
US3405371A
Expired / Lapsed
US
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Fluorescent garnet compositions and optical maser devices utilizing such compositions
Assignee: AT&T Inc
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Filing: 1966-04-01
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Granted: 1968-10-08
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Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Leo F Johnson
- 👤 Le Grand G Van Uitert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/1688; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7766; C09K11/7767; C09K11/7769; C09K11/7774
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A FLUORESCENT CRYSTALLINE COMPOSITION OF MATTER OF THE GENERAL FORMULA
Claim 2
Dependent Claim
10 words
A FLUORESCENT CRYSTALLINE COMPOSITION OF MATTER OF THE GENERAL FORMULA
References Cited (Backward Citations)
US3203899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |