US3173835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of n-acetyl-p-aminophenol and phenyltoloxamine for analgesia
Assignee: ENDO LAB
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Filing: 1963-03-19
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Granted: 1965-03-16
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Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Weiner Nathan
- 👤 Breslow Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:47
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16; A61K31/165
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
METHOD OF POTENTIATING THE ANALGESIC EFFECT F NACETYL-P-AMINOPHENOL WHICH CONSISTS IN ORALLY ADMINISTERING THE N-ACETYL-P-AMINOPHENOL IN ADMIXTURE WITH PHENYLTOLOXAMINE IN THE RESPECTIVE GRAVIMETRIC PROPORTIONS OF 100:4.5 TO 12.5, THE PEHNYLTOLOXAMINE BEING PRESENT AS A MEMBER OF THE GROUP CONSISTING OF THE FREE BASE AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |