US3361678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon carbride luminescent material
Assignee: General Electric Co
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Filing: 1965-01-04
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Granted: 1968-01-02
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Addamiano Arrigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C09; C09K; C09K11/00; C09K11/08; C09K11/65; Y; Y10; Y10S; Y10S148/00; Y10S148/148; Y10S252/00; Y10S252/95; Y10S252/951
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A HOMOGENEOUS LUMINESCENT MATERIAL CONSISTING ESSENTIALLY OF SILICON CARBIDE ACTIVATED BY 5X10**-5 TO 1X10**-3 ATOMS OF BORON PER MOLE OF SILICON CARBIDE AND COACTIVATED BY AN ELEMENT FROM THE GROUP CONSISTING OF NITROGEN AND PHOSPHORUS IN A QUANTITY SUFFICIENT TO COMPENSATE FOR THE CHARGE DEFICIENCY RESULTING FROM THE PRESENCE OF BORON.
Claim 2
Dependent Claim
51 words
A HOMOGENEOUS LUMINESCENT MATERIAL CONSISTING ESSENTIALLY OF SILICON CARBIDE ACTIVATED BY 5X10**-5 TO 1X10**-3 ATOMS OF BORON PER MOLE OF SILICON CARBIDE AND COACTIVATED BY AN ELEMENT FROM THE GROUP CONSISTING OF NITROGEN AND PHOSPHORUS IN A QUANTITY SUFFICIENT TO COMPENSATE FOR THE CHARGE DEFICIENCY RESULTING FROM THE PRESENCE OF BORON.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |