Patent US2554072A successfully refreshed from Google Patents.
US2554072A
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Antacid composition
Assignee: National Drug Co
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Filing: 1948-10-04
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Granted: 1951-05-22
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Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 Miller J Sullivan
- 👤 Gustav J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:21
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/58; A61K47/585
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
AN ANTACID COMPOSITION COMPRISING A FINELY DIVIDED ANION-EXCHANGE RESINOUS CONDENSATION PRODUCT OF A PHENOL, FORMALDEHYDE AND AN ALKYLENE POLYAMIDE, IN COMBINATION WITH A WATERSOLUBLE SALT OF A MEMBER OF THE CLASS CONSISTING OF ATROPINE AND HOMATROPINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |