US3400197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressible sustained release pharmaceutical tablet lipid-colloidal silica gel matrix fragment granules
Assignee: AH Robins Co Inc
•
Filing: 1965-01-26
•
Granted: 1968-09-03
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Lippmann Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:23
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/47; A61K31/49; A61K31/13; A61K31/14; A61K31/185; A61K31/205; A61K31/38; A61K31/39; A61K31/495; A61K31/505; A61K31/513; A61K31/515; A61K9/00; A61K9/20; A61K9/2004; A61K9/2009; A61K9/2013; A61K9/2072; A61K9/2086; A61K9/209
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2793979A
Cited
US2951791A
Cited
US2951792A
Cited
US3101299A
Cited
US3148124A
Cited
US3147187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |