US3415757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoro-substituted europium activated gadolinium,yttrium and lanthanum oxides
Assignee: US Philips Corp
•
Filing: 1965-08-05
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Granted: 1968-12-10
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Expires: 1985-08-05
Abstract
No abstract record available.
Inventors
- 👤 Willem Lambertus Wanmaker
- 👤 Alfred Bril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:22
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7783; C09K11/7784; C09K11/7787; C09K11/7788; C09K11/779; H01J29/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3250722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |