US3600324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terbium activated strontium ortho-phosphate phosphor
Assignee: US Philips Corp
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Filing: 1968-12-23
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Granted: 1971-08-17
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Expires: 1988-12-23
Abstract
Abstract TERBIUM ACTIVATED STRONTIUM ORTHOPHOSPHATE LUMINESCENT MATERIAL USEFUL AS A PHOSPHOR IN TELEVISION RECEIVER PICTURE TUBES.
Inventors
- 👤 Alfred Bril
- 👤 Willem Lambertus Wanmaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:53
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/20; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7743; C09K11/7752; C09K11/7753; H01J29/30; H01J29/32; H01J29/327
Claims Analysis
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |