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US3458451A
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Europium activated phosphors containing lithium fluoride and method for preparing the same
Assignee: Panasonic Holdings Corp
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Filing: 1965-12-20
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Granted: 1969-07-29
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Yoshichika Kobayashi
- 👤 Mutsuo Masuda
- 👤 Setsuko Murayama
- 👤 Hideo Mizuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:58
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7766; C09K11/7767; C09K11/7769; C09K11/7783; C09K11/7784; C09K11/7787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3250722A
Cited
US3368980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |