Patent US3749677A successfully refreshed from Google Patents.
US3749677A
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Chemiluminescent reaction of substituted 2,2,3,3-tetrachloro-1,4-benzodioxane
Assignee: Wyeth Holdings LLC
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Filing: 1971-01-27
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Granted: 1973-07-31
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Expires: 1991-01-27
Abstract
Abstract NOVEL SUBSTITUED BENZODIOXANE COMPOUNDS WHICH PROVIDE CHEMILUMINESCENT LIGHT WHEN REACTED WITH OTHER NECESSARY CHEMILUMINESCENT REACTANTS IN THE DIRECT GENERATION OF LIGHT FROM CHEMICAL ENERGY. BY "LIGHT" AS REFERRED TO HEREIN IS MEANT ELECTROMAGNETIC RADIATION AT WAVELENGTHS FALLING BETWEEN ABOUT 350 MU AND ABOUT 1,000 MU.
Inventors
- 👤 D Maulding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:57
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/14; C07D319/16; C07D319/20; 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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |