US3214383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for incorporating phosphorescent triplet state organic compounds in plastic media
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1962-09-26
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Granted: 1965-10-26
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Richard S Moore
- 👤 Maurice W Windsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22; C08; C08F; C08F265/00; C08F265/04; C08F265/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD OF MANUFACTURING AN ARTICLE CONSISTING ESSENTIALLY OF A TRIPLET STATE ORGANIC COMPOUND IN SOLID SOLUTION WITH A TRANSPARENT CROSS-LINKED PLASTIC HAVING A MONOFUNCTIONAL COMPONENT AND A DIFUNCTIONAL COMPONENT, SAID METHOD COMPRISING: PARTIALLY POLYMERIZING A PURE, DRY MONOFUNCTIONAL PLASTIC MONOMER OF METHYLMETHACRYLATE TO SYRUP, PARTIALLY POLYMERIZING A PURE, DRY, DIFUNCTIONAL PLASTIC MONOMER OF ETHYLENEGLYCOLDIMETHACRYLATE TO A SYRUP, FORMING A MIXTURE OF SAID SYRUPS, INTRODUCING A TRIPLET STATE ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CHRYSENE AND NAPHTHALENE INTO SAID SYRUP MIXTURE TO FORM A HOMOGENEOUS SOLUTION, AND CURING SAID SOLUTION TO FURTHER POLYMERIZE AND CROSS LINK SAID PLASTIC TO A DEGREE BELOW THAT WHICH CAUSES SAID PLASTIC TO LOSE ITS TRANSPARENCY, SAID PARTIAL POLYMERIZING STEP BEING EFFECTED SOLELY BY THE APPLICATION OF ULTRAVIOLET LIGHT AND HEAT.
Claim 2
Independent Claim
128 words
THE METHOD OF MANUFACTURING AN ARTICLE CONSISTING ESSENTIALLY OF A TRIPLET STATE ORGANIC COMPOUND IN SOLID SOLUTION WITH A TRANSPARENT CROSS-LINKED PLASTIC HAVING A MONOFUNCTIONAL COMPONENT AND A DIFUNCTIONAL COMPONENT, SAID METHOD COMPRISING: PARTIALLY POLYMERIZING A PURE, DRY MONOFUNCTIONAL PLASTIC MONOMER OF METHYLMETHACRYLATE TO SYRUP, PARTIALLY POLYMERIZING A PURE, DRY, DIFUNCTIONAL PLASTIC MONOMER OF ETHYLENEGLYCOLDIMETHACRYLATE TO A SYRUP, FORMING A MIXTURE OF SAID SYRUPS, INTRODUCING A TRIPLET STATE ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CHRYSENE AND NAPHTHALENE INTO SAID SYRUP MIXTURE TO FORM A HOMOGENEOUS SOLUTION, AND CURING SAID SOLUTION TO FURTHER POLYMERIZE AND CROSS LINK SAID PLASTIC TO A DEGREE BELOW THAT WHICH CAUSES SAID PLASTIC TO LOSE ITS TRANSPARENCY, SAID PARTIAL POLYMERIZING STEP BEING EFFECTED SOLELY BY THE APPLICATION OF ULTRAVIOLET LIGHT AND HEAT.
References Cited (Backward Citations)
US2650309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |