Patent US3776825A successfully refreshed from Google Patents.
US3776825A
Expired / Lapsed
US
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Electrolytic treatment
Assignee: National Patent Development Corp
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Filing: 1972-10-26
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Granted: 1973-12-04
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Expires: 1992-10-26
Abstract
Abstract AN AQUEOUS SOLUTION IS PROVIDED CONTAINING (1) AN ALKALI METAL OR ALKALINE EARTH METAL HALIDE WHERE THE HALOGEN HAS AN ATOMIC WEIGHT OF 35 TO 127 AND (2) AN AMINE CONTAINING A HYDROXY GROUP, A SULFONIC ACID GROUP, AN ACETYL GROUP OR A CARBOXYLIC ACID GROUP AND THE SOLUTION IS DECOMPOSED ELECTROLYTICALLY TO FORM THE CORRESPONDING N-HALO COMPOUND IN SITU.
Inventors
- 👤 J Vit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:09
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61Q; A61Q11/00; C; C25; C25B; C25B3/00; C25B3/01; C25B3/05; C25B3/07; C25B3/09; C25B3/11; C25B3/20; C25B3/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |