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US3138525A
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Castor wax-amprotropine-resin compositions
Assignee: F Hoffmann La Roche AG
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Filing: 1961-06-16
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Granted: 1964-06-23
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Expires: 1981-06-16
Abstract
No abstract record available.
Inventors
- 👤 Koff Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:29
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/795; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/58; A61K47/585; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1617
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AS A COMPOSITION OF MATTER, A HIGHLY ACIDIC CATION EXCHANGE RESIN WHEREIN AT LEAST SOME OF THE CATIONS PRESENT ARE CATIONS OF AMPROTROPINE, COATED WITH CASTOR WAX.
Claim 2
Dependent Claim
27 words
AS A COMPOSITION OF MATTER, A HIGHLY ACIDIC CATION EXCHANGE RESIN WHEREIN AT LEAST SOME OF THE CATIONS PRESENT ARE CATIONS OF AMPROTROPINE, COATED WITH CASTOR WAX.
References Cited (Backward Citations)
US2805977A
Cited
US2990332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |