US2628182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzocaine anesthetic solution
Assignee: Mizzy Inc
•
Filing: 1950-05-10
•
Granted: 1953-02-10
•
Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 Julian R Reasenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:05
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LIQUID TOPICAL ANESTHETIC SOLUTION STABLE AT 0* C. COMPRISING PROPYLENE GLYCOL, MORE THAN 10 PER CENT OF BENZOCAINE, AND A HEXITAN MONOLAURATE-POLYOXYALKYLENE DERIVATIVE HAVING FROM 8 TO 25 ALKYLENEOXIDE UNITS PER MOLE.
Claim 2
Dependent Claim
33 words
A LIQUID TOPICAL ANESTHETIC SOLUTION STABLE AT 0* C. COMPRISING PROPYLENE GLYCOL, MORE THAN 10 PER CENT OF BENZOCAINE, AND A HEXITAN MONOLAURATE-POLYOXYALKYLENE DERIVATIVE HAVING FROM 8 TO 25 ALKYLENEOXIDE UNITS PER MOLE.
References Cited (Backward Citations)
US2045125A
Cited
US2382546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |