Patent US3590003A successfully refreshed from Google Patents.
US3590003A
Expired / Lapsed
US
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Infrared chemiluminescent composition
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1967-06-28
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Granted: 1971-06-29
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Expires: 1987-06-28
Abstract
Abstract THIS INVENTION RELATES TO A CHEMILUMINESCENT COMPOSITION WHICH PRODUCES LIGHT IN THE INFRARED REGION OF THE SPECTRUM COMPRISING A HALOGENATING AGENT, AN ORGANIC COMPOUND SUCH AS DIMETHYLDIBENZANTHRONE, 4-CYCLOHEXYLBENZNATHRONE, PYRANTHRONE, 2-KETO-3-METHYL-1,3-DIAZBENZANTHRONE, DIBENZANTHRONE, DIETHYLDIBENZANTHRONE, DIPHENYLDIBENZANTHRONE, CHLOROPHYLL, 3-METHYL - 1,3 - DIAZA-1,9BENZANTHRONE, 3 - BROMOBENZ(DE)ANTHRONE AND VIOLANTHROPE, AN OXIDIZING AGENT AND A POLAR SOLVENT. LIGHT PRODUCED BY THE CHEMILUMINESCENT COMPOSITION, IS INVISIBLE TO THE NACKED EYE BUT MAY BE DETECTED BY THE STATE-OF-THE-ART PHOTO MULTIPLIER DEVICES.
Inventors
- 👤 Robert A Meyers
- 👤 Christopher S Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:15
CPC Classifications
F; F21; F21K; F21K2/00; F21K2/06; C; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |