US3360675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Europium and calcium or manganese activated yttrium vanadate phosphor
Assignee: GTE Sylvania Inc
•
Filing: 1964-11-23
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Granted: 1967-12-26
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Felix F Mikus
- 👤 James E Mathers
- 👤 Frank C Palilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:19
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7783; C09K11/7794
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A LUMINESCENT MATERIAL CONSISTING ESSENTIALLY OF YTTRIUM VANADATE ACTIVATED BY EUROPIUM AND CONTAINING SUFFICIENT QUANTITIES OF A CATION SELECTED FROM THE GROUP CONSISTING OF CALCIUM AND MANGANESE IN THE MATRIX TO ENHANCE THE LUMINESCENCE OF SAID YTTRIUM VANADATE.
Claim 2
Dependent Claim
38 words
A LUMINESCENT MATERIAL CONSISTING ESSENTIALLY OF YTTRIUM VANADATE ACTIVATED BY EUROPIUM AND CONTAINING SUFFICIENT QUANTITIES OF A CATION SELECTED FROM THE GROUP CONSISTING OF CALCIUM AND MANGANESE IN THE MATRIX TO ENHANCE THE LUMINESCENCE OF SAID YTTRIUM VANADATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |