Patent US3417027A successfully refreshed from Google Patents.
US3417027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Europium activated yttrium and gadolinium vanadate-phosphate and vanadate-arsenate phosphors
Assignee: US Philips Corp
•
Filing: 1966-01-20
•
Granted: 1968-12-17
•
Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Wanmaker Willen Lambertus
- 👤 Verlijsdonk Johannu Godefridus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:01
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7783; C09K11/7795; C09K11/7794; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
1<X<0.8 0.02<P<0.18
Claim 2
Dependent Claim
24 words
A RED LUMINESCENT SUBSTANCE PARTICULARLY SUITABLE FOR USE IN A LUMINESCENT SCREEN, AND LUMINESCENT COMPONENT BEING A EUROPIUM ACTIVATED VANADATE PHOSPHOR OF THE FORMULA:
References Cited (Backward Citations)
US3152085A
Cited
US3250722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |