US3152177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brominatign of salicylanilide
Assignee: —
•
Filing: —
•
Granted: 1964-10-06
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A METHOD OF PRODUCING A MIXTURE OF BROMINATION PRODUCTS OF SALICYLANIDE CONTAINING PREDOMINANTLY 4'',5DIBROMOSALICYLANIDE WHEREIN SALICYLANILIDE IS CONTACTED WITH BROMINE IN A REACTION MEDIUM WHEREBY BROMINATION IS ACCOMPLISHED, THE IMPROVEMENT WHICH COMPRISES PROVIDING AS THE REACTION MEDIUM A MIXTURE OF (A) P-DIOXANE AND (B) A MAXIMUM OF 15 PERCENT OF WATER.
Claim 2
Dependent Claim
52 words
IN A METHOD OF PRODUCING A MIXTURE OF BROMINATION PRODUCTS OF SALICYLANIDE CONTAINING PREDOMINANTLY 4'',5DIBROMOSALICYLANIDE WHEREIN SALICYLANILIDE IS CONTACTED WITH BROMINE IN A REACTION MEDIUM WHEREBY BROMINATION IS ACCOMPLISHED, THE IMPROVEMENT WHICH COMPRISES PROVIDING AS THE REACTION MEDIUM A MIXTURE OF (A) P-DIOXANE AND (B) A MAXIMUM OF 15 PERCENT OF WATER.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |