US5264422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of alginic acid with steroidal alcohols
Assignee: Fidia SpA
•
Filing: 1991-06-20
•
Granted: 1993-11-23
•
Expires: 2011-06-20
Abstract
Abstract Partial esters of alginic acid and salts thereof possess important bioplastic and pharmaceutical qualities and are useful in various fields including medical, surgical, cosmetics and foods.
Inventors
- 👤 Francesco Della Valle
- 👤 Aurelio Romeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:36
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K47/00; A61K47/30; A61K47/36; A61K47/50; A61K47/51; A61K47/56; A61K47/61; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/733; A61L; A61L17/00; A61L17/06; A61L17/10; A61L27/00; A61L27/14; A61L27/20; A61Q; A61Q19/00; C; C08; C08B; C08B37/00; C08B37/006; C08B37/0084; Y; Y10; Y10S; Y10S128/00; Y10S128/912; Y10S623/00; Y10S623/924
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
A pharmaceutical composition comprising, as active ingredient, an effective amount of an alginic acid partially esterified with an alcohol wherein the alcohol moiety is derived from steroidal alcohols, or a salt thereof with an inorganic or organic base; and a pharmacologically acceptable carrier.
Claim 2
Dependent Claim
43 words
A pharmaceutical composition comprising, as active ingredient, an effective amount of an alginic acid partially esterified with an alcohol wherein the alcohol moiety is derived from steroidal alcohols, or a salt thereof with an inorganic or organic base; and a pharmacologically acceptable carrier.
Claim 3
Dependent Claim
19 words
The pharmaceutical compositions according to claim 1 wherein the alcohol moiety is derived from alcohols of the cortisone type.
Claim 4
Dependent Claim
15 words
The pharmaceutical compositions according to claim 1 wherein the alcohol moiety is derived from hydrocortisone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |