US4083950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable acetylsalicylic acid and phenylpropanolamine salt composition
Assignee: Bayer Corp
•
Filing: 1976-03-08
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Granted: 1978-04-11
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Expires: 1996-03-08
Abstract
Abstract A stable composition containing acetylsalicylic acid and a nasal decongestant is disclosed wherein the decongestant is the bitartrate or tartrate salt of phenylpropanolamine or mixture of such salts.
Inventors
- 👤 Ronald Nash Duvall
- 👤 Gerald Gold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:48
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/60; A61K31/618; A61K31/621; A61K9/00; A61K9/0002; A61K9/0007
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
46 words
A stable medicinal composition comprising a substantially uniform mixture of from about 80 to 650 mg. acetylsalicylic acid and from about 5 to 60 mg. of a bitartrate or tartrate salt of phenylpropanolamine or a mixture of such salts in direct contact with the acetylsalicylic acid.
Claim 2
Dependent Claim
46 words
A stable medicinal composition comprising a substantially uniform mixture of from about 80 to 650 mg. acetylsalicylic acid and from about 5 to 60 mg. of a bitartrate or tartrate salt of phenylpropanolamine or a mixture of such salts in direct contact with the acetylsalicylic acid.
Claim 3
Dependent Claim
12 words
A composition according to claim 1 wherein the salt is phenylpropanolamine bitartrate.
Claim 4
Dependent Claim
11 words
A composition according to claim 1 also containing an effervescent couple.
Claim 5
Dependent Claim
20 words
A composition according to claim 3 wherein the effervescent couple consists of a mixture of sodium bicarbonate and citric acid.
Claim 6
Dependent Claim
31 words
A composition according to claim 1 containing about 10.4 weight percent acetylsalicylic acid and about 0.8 weight percent phenylpropanolamine bitartrate, said weight percent based on the total weight of the composition.
Claim 7
Dependent Claim
33 words
A composition according to claim 1 containing about 93 weight percent acetylsalicylic acid and about 7 weight percent phenylpropanolamine bitartrate based upon the total weight of the acetylsalicylic acid and the bitartrate salt.
References Cited (Backward Citations)
US2427887A
Cited
US3567819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |