US3100787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basic aluminum salts of acetylsalicylate acid and a non-toxic water soluble acid
Assignee: Individual
•
Filing: 1960-05-10
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Granted: 1963-08-13
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Expires: 1980-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Ludwig Adolph Staib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:16
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
AN ALUMINUM ASPIRIN COMPOSITION REPRESENTED BY THE AVERAGE FORMULA AL(R1)X(R2)Y(R3)Z, WHEREIN R1 REPRESENTS AN EQUIVALENT OF NON-TOXIC, WATER-SOLUBLE ACID ANION, DERIVED FROM AN ACID CHARACTERIZED BY A DISSOCIATION CONSTANT OF AT LEAST ABOUT 10-5, R2 REPRESENTS THE ANION OF ACETYLSALCYLIC ACID, AND R3 REPRESENTS HYDROXYL GROUPS, THE SUBSCRIPT X IS AT LEAST ABOUT 0.1, THE SUBSCRIPT Y IS AT LEAST ABOUT 0.5 AND THE SUBSCRIPT Z EQUALS 3-(X+Y) AND IS AT LEAST ABOUT 0.1.
Claim 2
Dependent Claim
74 words
AN ALUMINUM ASPIRIN COMPOSITION REPRESENTED BY THE AVERAGE FORMULA AL(R1)X(R2)Y(R3)Z, WHEREIN R1 REPRESENTS AN EQUIVALENT OF NON-TOXIC, WATER-SOLUBLE ACID ANION, DERIVED FROM AN ACID CHARACTERIZED BY A DISSOCIATION CONSTANT OF AT LEAST ABOUT 10-5, R2 REPRESENTS THE ANION OF ACETYLSALCYLIC ACID, AND R3 REPRESENTS HYDROXYL GROUPS, THE SUBSCRIPT X IS AT LEAST ABOUT 0.1, THE SUBSCRIPT Y IS AT LEAST ABOUT 0.5 AND THE SUBSCRIPT Z EQUALS 3-(X+Y) AND IS AT LEAST ABOUT 0.1.
Claim 3
Independent Claim
80 words
THE METHOD OF PRODUCING AN ALUMINUM ASPIRIN COMPOSITION SUBSTANTIALLY FREE OF UNREACTED ACETYLSALICYLIC ACID WHICH COMPRISES ADMIXING IN A SUBSTANTIALLY WATERFREE INERT ORGANIC SOLVENT AN ALUMINUM ALCOHOLATE WITH A BLE NON-TOXIC ACIDS CHARACTERIZED BY DISSOLCATION CONSTANTS BLE NON-TOXIC ACIDS CHARACTERIZED BY DISSOCIATION CONSTANTS OF AT LEAST ABOUT 10-5 AND THE ALUMINUM SALTS THEREOF; ADDING ACETYLSALICYLIC ACID TO THE MIXTURE AND THEREAFTER ADDING WATER TO THE MIXTURE AND HEATING AT A TEMPERATURE BELOW ABOUT 60*C. TO HYDROLYZE ANY UNREACTED ALCOHOLATE GROUPS.
Claim 4
Independent Claim
80 words
THE METHOD OF PRODUCING AN ALUMINUM ASPIRIN COMPOSITION SUBSTANTIALLY FREE OF UNREACTED ACETYLSALICYLIC ACID WHICH COMPRISES ADMIXING IN A SUBSTANTIALLY WATERFREE INERT ORGANIC SOLVENT AN ALUMINUM ALCOHOLATE WITH A BLE NON-TOXIC ACIDS CHARACTERIZED BY DISSOLCATION CONSTANTS BLE NON-TOXIC ACIDS CHARACTERIZED BY DISSOCIATION CONSTANTS OF AT LEAST ABOUT 10-5 AND THE ALUMINUM SALTS THEREOF; ADDING ACETYLSALICYLIC ACID TO THE MIXTURE AND THEREAFTER ADDING WATER TO THE MIXTURE AND HEATING AT A TEMPERATURE BELOW ABOUT 60*C. TO HYDROLYZE ANY UNREACTED ALCOHOLATE GROUPS.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |