US2857313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-lubricating granulation
Assignee: CIBA PHARM PROD Inc
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Filing: 1956-03-27
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Granted: 1958-10-21
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Cooper Jack
- 👤 Pasquale Daniel Mario
- 👤 Windheuser John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2095; A61K9/14; A61K9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A METHOD FOR PREPARING GRANULES OF THERAPEUTICALLY ACTIVE SUBSTANCES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF ADDING A LUBRICATING AGENT, IN AN EFFECTIVE AMOUNT UP TO AND INCLUDING ABOUT 10%, BY WEIGHT OF THE RESULTING GRANULES TO A DRY, POWDERED MIXTURE OF A THERAPEUTIC COMPOUND AND AN EXCIPIENT, MOISTENING SAID MIXTURE WITH A SOLVENT CONTAINING A BINDING AGENT AND FORMING THE RESULTING MASS INTO GRANULES.
Claim 2
Dependent Claim
66 words
IN A METHOD FOR PREPARING GRANULES OF THERAPEUTICALLY ACTIVE SUBSTANCES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF ADDING A LUBRICATING AGENT, IN AN EFFECTIVE AMOUNT UP TO AND INCLUDING ABOUT 10%, BY WEIGHT OF THE RESULTING GRANULES TO A DRY, POWDERED MIXTURE OF A THERAPEUTIC COMPOUND AND AN EXCIPIENT, MOISTENING SAID MIXTURE WITH A SOLVENT CONTAINING A BINDING AGENT AND FORMING THE RESULTING MASS INTO GRANULES.
References Cited (Backward Citations)
US2735798A
Cited
US2736682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |