US3677957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemiluminescent reaction of chlorinated ethylene carbonate with hydrogen peroxide in the presence of a fluorescer
Assignee: Wyeth Holdings LLC
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Filing: 1969-12-17
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Granted: 1972-07-18
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Expires: 1989-12-17
Abstract
Abstract DISCLOSED IS A CHEMILUMINESCENT COMPOSITION FOR REACTION WITH A PEROXIDE COMPOUND TO PRODUCE CHEMILUMINESCENT LIGHT, SAID COMPOSITION CONTAINING A HALOGENATED ETHYLENE CARBONATE AND AN ORGANIC FLUROESCENT COMPOUND IN AN ORGANIC SOLVENT.
Inventors
- 👤 Donald Roy Maulding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:53
CPC Classifications
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |