US3272703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antacid composition and process of making the same
Assignee: Armour Pharmaceutical Co
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Filing: 1962-10-25
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Granted: 1966-09-13
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Expires: 1982-10-25
Abstract
No abstract record available.
Inventors
- 👤 Andrew M Rubino
- 👤 Jr James J Martin
- 👤 John E Garizio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:35
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/06; A61K33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A SPROCESS FOR PREPARING AN ANTACID COMPOSITION CAPABLE AS DETERMINED BY THE HOLBERT, NOBLE AND GROTE TEST METHOD OF MAINTAINING THE PH OF ARTICIFICAL GASTRIC JUICE WITHIN THE RANGE FROM ABOUT 3 TO ABOUT 5 FOR AT LEAST ONE HOUR, WHICH COMPRISES MIXING AN AQUEOUS MEDIUM OF (A) A SOLUTION OF AN ALKALI METAL ALUMINATE, SELECTED FROM THE GROUP CONSISTING OF SODIUM ALUMINATE AND POTASSIUM ALUMINATE (B) A SOLUTION OF AT LEAST ONE WATER-SOLUBLE SALT OF CALCIUM AND MAGNESIUM, SELECTED FROM THE CLASS OF SALTS CONSISTING OF CHLORIDE, BROMIDE, IODIDE AND NITRATE, AND (C) A SOLUTION CONTAINING SUFFICIENT ALKALI, SELECTED FROM THE CLASS CONSISTNG OF SODIUM HYDROXIDE, POTASSIUM HYDROXIDE, SODIUM CARBONATE AND POTASSIUM CARBONATE, TO PROVIDE AND MAINTAIN SAID MEDIA AT A PH OF FROM ABOUT 9 TO ABOUT 10, TO FORM A COPRECIPITATE COMPLEX COMPRISING ALUMINUM, AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND CALCIUM, AND HYDROXIDE IONS, AND REACTING THE COPRECIPITATE COMPLEX WITH CARBON DIOXIDE AT A SOLUTION PH WITHIN THE RANGE FROM ABOUT 6 TO ABOUT 10 WHEREUPON A CARBONATED COPRECIPITATE COMPLEX IS FORMED HAVING A MOLECULAR WEIGHT RATIO CALCULATED AS AL2O3:MO WITHIN THE RANGE OF ABOUT 4:1 TO ABOUT 1:10, WHEREIN M REPRESENTS AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND CALCIUM.
Claim 2
Dependent Claim
214 words
A SPROCESS FOR PREPARING AN ANTACID COMPOSITION CAPABLE AS DETERMINED BY THE HOLBERT, NOBLE AND GROTE TEST METHOD OF MAINTAINING THE PH OF ARTICIFICAL GASTRIC JUICE WITHIN THE RANGE FROM ABOUT 3 TO ABOUT 5 FOR AT LEAST ONE HOUR, WHICH COMPRISES MIXING AN AQUEOUS MEDIUM OF (A) A SOLUTION OF AN ALKALI METAL ALUMINATE, SELECTED FROM THE GROUP CONSISTING OF SODIUM ALUMINATE AND POTASSIUM ALUMINATE (B) A SOLUTION OF AT LEAST ONE WATER-SOLUBLE SALT OF CALCIUM AND MAGNESIUM, SELECTED FROM THE CLASS OF SALTS CONSISTING OF CHLORIDE, BROMIDE, IODIDE AND NITRATE, AND (C) A SOLUTION CONTAINING SUFFICIENT ALKALI, SELECTED FROM THE CLASS CONSISTNG OF SODIUM HYDROXIDE, POTASSIUM HYDROXIDE, SODIUM CARBONATE AND POTASSIUM CARBONATE, TO PROVIDE AND MAINTAIN SAID MEDIA AT A PH OF FROM ABOUT 9 TO ABOUT 10, TO FORM A COPRECIPITATE COMPLEX COMPRISING ALUMINUM, AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND CALCIUM, AND HYDROXIDE IONS, AND REACTING THE COPRECIPITATE COMPLEX WITH CARBON DIOXIDE AT A SOLUTION PH WITHIN THE RANGE FROM ABOUT 6 TO ABOUT 10 WHEREUPON A CARBONATED COPRECIPITATE COMPLEX IS FORMED HAVING A MOLECULAR WEIGHT RATIO CALCULATED AS AL2O3:MO WITHIN THE RANGE OF ABOUT 4:1 TO ABOUT 1:10, WHEREIN M REPRESENTS AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND CALCIUM.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |