US3201352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorescent materials
Assignee: Merck KGaA
•
Filing: 1962-01-29
•
Granted: 1965-08-17
•
Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jayme Georg
- 👤 Bauer Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:14
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A PHOSPHORESCENT COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE, IN PARTS BY WEIGHT, OF ABOUT 0.1-15 PARTS OF AN ACTIVATING SUBSTANCE AND OF ABOUT 99.9-85 PARTS OF A TRIAZINE COMPOUND, SAID ACTIVATING SUBSTANCE BEING AN ORGANIC COMPOUND OTHER THAN A TRIZINE COMPOUND AND EXHIBITING FLUORESCENCE PER SE WHEN IRRADIATED BY SHORT WAVE LIGHT AND ADDITIONALLY EXHIBITING A PHOSPHORESCENCE IN SOLID SOLUTION AND IN ABSORBATES, AND SAID TRIAZINE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF CYANURIC ACID, THE ESTERS AND SALTS THEREOF, AND MELAMINE, SAID COMPOSITION HAVING A PHOSPHORESCENCE WHICH IS EXTREMELY RESISTANT TO WATER AND MOISTURE.
Claim 2
Dependent Claim
97 words
A PHOSPHORESCENT COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE, IN PARTS BY WEIGHT, OF ABOUT 0.1-15 PARTS OF AN ACTIVATING SUBSTANCE AND OF ABOUT 99.9-85 PARTS OF A TRIAZINE COMPOUND, SAID ACTIVATING SUBSTANCE BEING AN ORGANIC COMPOUND OTHER THAN A TRIZINE COMPOUND AND EXHIBITING FLUORESCENCE PER SE WHEN IRRADIATED BY SHORT WAVE LIGHT AND ADDITIONALLY EXHIBITING A PHOSPHORESCENCE IN SOLID SOLUTION AND IN ABSORBATES, AND SAID TRIAZINE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF CYANURIC ACID, THE ESTERS AND SALTS THEREOF, AND MELAMINE, SAID COMPOSITION HAVING A PHOSPHORESCENCE WHICH IS EXTREMELY RESISTANT TO WATER AND MOISTURE.
Claim 3
Independent Claim
87 words
A METHOD OF PRODUCING A PHOSPHORESCENT COMPOSITION, WHICH METHOD COMPRISES MELTING TOGETHER A MIXTURE CONSISTING ESSTNEIALLY OF ABOUT 0.1-15 PARTS OF A ACTIVATING SUBSTANCE AND OF ABOUT 99.9-85 PARTS OF A TRIAZINE COMPOUND, SAID ACTIVATING SUBSTANCE BEING AN ORGANIC COMPOUND OTHER THAN A TRIAZINE COMPOUND AND EXHIBITING FLUORESCENCE PER SE WHEN IRRADIATED BY SHORT WAVE LIGHT AND ADDITIONALLY EXHIBITING A PHOSPHORESCENCE IN SOLID SOLUTION AND IN ADSORBATES, AND SAID TRIAZINE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF CYANURIC ACID, THE ESTERS AND SALTS THEREOF, AND MELAMINE.
Claim 4
Independent Claim
87 words
A METHOD OF PRODUCING A PHOSPHORESCENT COMPOSITION, WHICH METHOD COMPRISES MELTING TOGETHER A MIXTURE CONSISTING ESSTNEIALLY OF ABOUT 0.1-15 PARTS OF A ACTIVATING SUBSTANCE AND OF ABOUT 99.9-85 PARTS OF A TRIAZINE COMPOUND, SAID ACTIVATING SUBSTANCE BEING AN ORGANIC COMPOUND OTHER THAN A TRIAZINE COMPOUND AND EXHIBITING FLUORESCENCE PER SE WHEN IRRADIATED BY SHORT WAVE LIGHT AND ADDITIONALLY EXHIBITING A PHOSPHORESCENCE IN SOLID SOLUTION AND IN ADSORBATES, AND SAID TRIAZINE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF CYANURIC ACID, THE ESTERS AND SALTS THEREOF, AND MELAMINE.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |