US3041239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous salicylamide composition and method of preparing same
Assignee: Johnson and Johnson
•
Filing: 1959-05-28
•
Granted: 1962-06-26
•
Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Nashed Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:01
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0087; A61K9/0095; A61K31/00; A61K31/60; C; C08; C08L; C08L39/00; C08L39/04; C08L39/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
A METHOD FOR THE PREPARATION OF A STABLE AQUEOUS SUSPENSION CONTAINING 2 TO 15 PERCENT BY WEIGHT OF SOLID SALICYLAMIDE AND A THICKENING AGENT IN AN AQUEOUS VEHICLE, WHICH METHOD COMPRISES PREPARING AN AQUEOUS SOLUTION OF THE AGENT AND ADDING A PASTE OF THE SALICYLAMIDE IN AQUEOUS POLYVINYLPYRROLIDONE AND THOROUGHLY MIXING WITH AN AQUEOUS SUGAR SOLUTION TO GIVE A FINAL SUSPENSION HAVING A SPECIFIC GRAVITY IN THE RANGE OF 1.335 TO 1.340, THE CONCENTRATION OF THE POLYVINYLPYRROLIDONE BEING AT LEAST 0.0149% BASED ON THE WEIGHT OF THE FINAL SUSPENSION, SAID SALICYLAMIDE BEING OF A PARTICLE SIZE SUCH THAT SUBSTANTIALLY OF ALL OF IT PASSES THROUGH A #100 MESH SIEVE AND AT LEAST 50% THEREOF IS RETAINED ON A #325 MESH SIEVE, THE AMOUNT OF THE THICKENING AGENT BEING SUCH AS TO PROVIDE A FLUID HAVING A VISOCITY IN THE RANGE OF 300 TO 18,300 C.P.S.
Claim 2
Independent Claim
145 words
A METHOD FOR THE PREPARATION OF A STABLE AQUEOUS SUSPENSION CONTAINING 2 TO 15 PERCENT BY WEIGHT OF SOLID SALICYLAMIDE AND A THICKENING AGENT IN AN AQUEOUS VEHICLE, WHICH METHOD COMPRISES PREPARING AN AQUEOUS SOLUTION OF THE AGENT AND ADDING A PASTE OF THE SALICYLAMIDE IN AQUEOUS POLYVINYLPYRROLIDONE AND THOROUGHLY MIXING WITH AN AQUEOUS SUGAR SOLUTION TO GIVE A FINAL SUSPENSION HAVING A SPECIFIC GRAVITY IN THE RANGE OF 1.335 TO 1.340, THE CONCENTRATION OF THE POLYVINYLPYRROLIDONE BEING AT LEAST 0.0149% BASED ON THE WEIGHT OF THE FINAL SUSPENSION, SAID SALICYLAMIDE BEING OF A PARTICLE SIZE SUCH THAT SUBSTANTIALLY OF ALL OF IT PASSES THROUGH A #100 MESH SIEVE AND AT LEAST 50% THEREOF IS RETAINED ON A #325 MESH SIEVE, THE AMOUNT OF THE THICKENING AGENT BEING SUCH AS TO PROVIDE A FLUID HAVING A VISOCITY IN THE RANGE OF 300 TO 18,300 C.P.S.
Claim 3
Dependent Claim
103 words
A STABLE AQUEOUS SUSPENSION OF 2 TO 15 PERCENT BY WEIGHT OF SOLID SALICYLAMIDE IN AN AQUEOUS SUGAR SOLUTION, WHICH SOLUTION HAS A SPECIFIC GRAVITY IN THE RANGE OF 1.335 TO 1.340, WHICH SUSPENSION CONTAINS AT LEAST 0.0149% OF POLYVINYLPYRROLIDONE BASED ON THE WEIGHT OF THE FINAL SUSPENSION, SAID SALICYLAMIDE BEING OF A PARTICLE SIZE SUCH THAT SUBSTANTIALLY ALL OF ITS PASSES THROUGH A #100 MESH SIEVE AND AT LEAST 50% THEREOF IS RETAINED ON A #325 MESH SIEVE, THE AMOUNT OF THE THICKENING AGENT BEING SUCH AS TO PROVIDE A FLUID HAVING A VISOCITY IN THE RANGE OF 300 TO 18,300 C.P.S.
Claim 4
Dependent Claim
103 words
A STABLE AQUEOUS SUSPENSION OF 2 TO 15 PERCENT BY WEIGHT OF SOLID SALICYLAMIDE IN AN AQUEOUS SUGAR SOLUTION, WHICH SOLUTION HAS A SPECIFIC GRAVITY IN THE RANGE OF 1.335 TO 1.340, WHICH SUSPENSION CONTAINS AT LEAST 0.0149% OF POLYVINYLPYRROLIDONE BASED ON THE WEIGHT OF THE FINAL SUSPENSION, SAID SALICYLAMIDE BEING OF A PARTICLE SIZE SUCH THAT SUBSTANTIALLY ALL OF ITS PASSES THROUGH A #100 MESH SIEVE AND AT LEAST 50% THEREOF IS RETAINED ON A #325 MESH SIEVE, THE AMOUNT OF THE THICKENING AGENT BEING SUCH AS TO PROVIDE A FLUID HAVING A VISOCITY IN THE RANGE OF 300 TO 18,300 C.P.S.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |