US3773919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polylactide-drug mixtures
Assignee: EIDP Inc
•
Filing: 1970-10-08
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Granted: 1973-11-20
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Expires: 1990-10-08
Abstract
Abstract DESCRIBED AND CLAIMED ARE FORMULATIONS OF POLYLACTIDE AND DRUG TO BE INTRODUCED INTO THE BODY WHICH PROVIDE A SLOW SUSTAINED RELEASE OF THE DRUG OVER A CONTROLLED PERIOD OF TIME. THE POLYLACTIDE IS BIODEGRADABLE IN THE BODY INTO NORMAL OR ESSENTIALLY NORMAL METABOLIC PRODUCTS THAT HAVE NO DELETERIOUS OR UNTOWARD EFFECT ON THE BODY.
Inventors
- 👤 G Boswell
- 👤 R Scribner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:41
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1641; A61K9/1647; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2031; A61K9/204; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5031; B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/08
Claims Analysis
Total Claims: 0
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |