US3143510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper and tin activated orthophosphate phosphors
Assignee: US Philips Corp
•
Filing: 1960-05-16
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Granted: 1964-08-04
•
Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Wanmaker Willem Lambertus
- 👤 Bakker Cornelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:44
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/70; C09K11/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A LUMINESCENT SUBSTANCE, ACTIVATED BY MONOVALENT COPPER AND BIVALENT IN AND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
15 words
A LUMINESCENT SUBSTANCE, ACTIVATED BY MONOVALENT COPPER AND BIVALENT IN AND REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |