US3282856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminescent compositions containing europium and the oxyanion-yielding ingredient aluminum, gallium or germanium
Assignee: EIDP Inc
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Filing: 1965-12-21
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Granted: 1966-11-01
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Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Hans J Borchardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7783; C09K11/7784; C09K11/7787; C09K11/7792; C09K11/7793
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A LUMINESCENT COMPOSITION CONSISTING ESSENTIALLY OF A SUBSTANTIALLY COLORLESS LUMINOPHOR OF THE FORMULA:
Claim 2
Dependent Claim
13 words
A LUMINESCENT COMPOSITION CONSISTING ESSENTIALLY OF A SUBSTANTIALLY COLORLESS LUMINOPHOR OF THE FORMULA:
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |