US2851393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beta-diethylamino butyric acid anilide, nontoxic salts thereof and aqueous local anesthetic solutions therewith
Assignee: Ed Geistlich Soehne AG fuer Chemische Industrie
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Filing: 1955-12-27
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Granted: 1958-09-09
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Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Hofstetter Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:43
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16; A61K31/165; C; C07; C07C; C07C237/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
A LOCAL ANAESTHETIC COMPOSITION COMPRISING A STERILE INJECTABLE SOLUTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF B-DIETHYLAMINO BUTYRIC ACID ANILIDE AND NONTOXIC SALTS THEREOF.
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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |