US2732347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminescent zinc
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:57
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/70; C09K11/61; C09K11/611; C09K11/612
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PHOSPHOR CONSISTING ESSENTIALLY OF THE FIRED REACTION PRODUCT OF A SULPHIDE FROM THE GROUP CONSISTING OF ZINC SULPHIDE, CADMIUM SULPHIDE, AND ZINC-CADMIUM SULPHIDE, 0.02-0.2 PER CENT SILVER, BY WEIGHT, AS AN ACTIVATOR, AND A FLUX CONSISTING OF 2-5 PER CENT, BY WEIGHT, OF A CHLORIDE AND 6-20 PER CENT, BY WEIGHT, OF AN ALKALI METAL PHOSPHATE, SAID CHLORIDE TAKEN FROM THE GROUP CONSISTING OF ALKALI METAL, ALKALINE EARTH, AND AMMONIUM CHLORIDES.
References Cited (Backward Citations)
GB473715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |