US3215601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antacid composition and method of making same
Assignee: Warner Lambert Co LLC
•
Filing: 1963-02-07
•
Granted: 1965-11-02
•
Expires: 1983-02-07
Abstract
No abstract record available.
Inventors
- 👤 Morris E Stolar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:13
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
PROCESS FOR THE PRODUCTION OF MAGNESIUM CARBOSILICATE WHICH COMPRISES, (A) ADDING SODIUM SILICATE TO AN AQUEOUS SOLUTION OF SODIUM CARBONATE, (B) ADDING THE RESULTING SOLUTION OF (A) WITH STIRRING TO A SUSPENSION OF MAGNESIUM HYDROXIDE UNTIL A SMOOTH SLURRY IS OBTAINED, AND (C) ADDING SEPARATE AQUEOUS SOLUTIONS OF MAGNESIUM CHLORIDE AND CALCIUM CHLORIDE TO THE SLURRY OF (B) WITH MIXING UNTIL A PRECIPITATE OF MAGNESIUM CARBOSILICATE IS OBTAINED.
Claim 2
Dependent Claim
68 words
PROCESS FOR THE PRODUCTION OF MAGNESIUM CARBOSILICATE WHICH COMPRISES, (A) ADDING SODIUM SILICATE TO AN AQUEOUS SOLUTION OF SODIUM CARBONATE, (B) ADDING THE RESULTING SOLUTION OF (A) WITH STIRRING TO A SUSPENSION OF MAGNESIUM HYDROXIDE UNTIL A SMOOTH SLURRY IS OBTAINED, AND (C) ADDING SEPARATE AQUEOUS SOLUTIONS OF MAGNESIUM CHLORIDE AND CALCIUM CHLORIDE TO THE SLURRY OF (B) WITH MIXING UNTIL A PRECIPITATE OF MAGNESIUM CARBOSILICATE IS OBTAINED.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |