Patent EP0313222A2 successfully refreshed from Google Patents.
US2803582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Local anesthetic composition
Assignee: Individual
•
Filing: 1956-07-16
•
Granted: 1957-08-20
•
Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Leonid S Cherney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/21; A61K31/215; A61K31/235; A61K31/24; A61K31/245
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
AS A NEW COMPOSITION OF MATTER, GROUND CRYSTALS OFF HYDROIODIDE OF THE BETA-DIMETHYLAMINOETHYL ESTER OF PARABUTYLAMINOBENZOIC ACID COATED WITH ALUMINUM STEARATE, THE ALUMINUM STEARATE CONSTITUTING FROM ABOUT 2% TO ABOUT 5% OF THE TOTAL COMPOSISTION AND THE SAID HYDROIODIDE CONSTITUTING FROM ABOUT 95% TO ABOUT 98% OF THE TOTAL COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |