US4626383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemiluminescent system catalysts
Assignee: United States Department of the Navy
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Filing: 1985-04-03
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Granted: 1986-12-02
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Expires: 2005-04-03
Abstract
Abstract Catalysts for low temperature hydrogen peroxide/oxalate ester fluorescer miluminescent systems are disclosed. Lithium carboxylic said salt catalysts which lower the activation energy of the reaction and also reduce the temperature dependence of the light emission process are preferred.
Inventors
- 👤 Herbert P. Richter
- 👤 Joseph H. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:57
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
In a method for producing light in short duration, high intensity systems and low temperature systems having the steps of bringing a hydrogen peroxide component containing a catalyst and a solvent and an oxalate ester-fluorescent component together and allowing said components to react to produce said light, the improvement comprising in utilizing as said catalyst a lithium carboxylic acid salt selected from the group consisting of lithium salicylate, lithium 5-t-butyl salicylate and lithium 2-chlorobenzoate.
Claim 2
Dependent Claim
74 words
In a method for producing light in short duration, high intensity systems and low temperature systems having the steps of bringing a hydrogen peroxide component containing a catalyst and a solvent and an oxalate ester-fluorescent component together and allowing said components to react to produce said light, the improvement comprising in utilizing as said catalyst a lithium carboxylic acid salt selected from the group consisting of lithium salicylate, lithium 5-t-butyl salicylate and lithium 2-chlorobenzoate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |