US3143465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutical preparations comprising phosphorus containing cation exchange resins having a basic drug adsorbed thereon; and treatment therewith
Assignee: US Filter Wallace and Tiernan Inc
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Filing: 1961-06-19
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Granted: 1964-08-04
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Keating John Wm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:38
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
58 words
A PHARMACEUTICAL COMPOSITION IN DOSAGE UNIT FORM COMPRISING A PHOSPHORUS CONTAINGIN CATION EXCHANGE RESIN SELECTED FROM THE GROUP CONSISTING OF PHOSPHONIC, PHOSPHONOUS AND PHOSPHORIC CATION EXCHANGE RESINS HAVING ADSORBED THEREON AN ORGANIC DRUG COMPOUND CONTAINING A BASIC NITROGEN GROUP, SAID ORGANIC DRUG COMPOUND IN FREE BASE FROM HAVING AN LD-50 IN RATS OF BETWEEN APPROXIMATELY 10 AND 3000.
References Cited (Backward Citations)
US2990332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |