US4917894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid-onset long-duration oral anesthetic composition
Assignee: GlaxoSmithKline LLC
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Filing: 1988-06-29
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Granted: 1990-04-17
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Expires: 2008-06-29
Abstract
Abstract An oral anesthetic composition comprising an anesthetically effective amount of a compound of formula (I) ##STR1## wherein R is alkyl of 2 to 8 carbon atoms or a pharmaceutically acceptable salt thereof and an anesthetically effective amount of a rapid-onset anesthetic selected from the group consisting of benzyl alcohol, phenol, phenolate sodium, hexylresorcinol, menthol, salicyl alcohol and benzocaine in combination with a pharmaceutically acceptable carrier, said carrier being in orally administrable form.
Inventors
- 👤 Joseph A. Matthias
- 👤 Kim L. Bildstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:39
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/006; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; A61K31/445; A61K9/0056
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
An oral anesthetic composition comprising an anesthetically effective amount of a compound of formula (I) ##STR3## wherein R is alkyl of 2 to 8 carbon atoms or a pharmaceutically acceptable salt thereof and an anesthetically effective amount of a rapid-onset anesthetic selected from the group consisting of hexylresorcinol, and benzocaine in combination with a pharmaceutically acceptable carrier, said carrier being in orally administrable form.
Claim 2
Dependent Claim
64 words
An oral anesthetic composition comprising an anesthetically effective amount of a compound of formula (I) ##STR3## wherein R is alkyl of 2 to 8 carbon atoms or a pharmaceutically acceptable salt thereof and an anesthetically effective amount of a rapid-onset anesthetic selected from the group consisting of hexylresorcinol, and benzocaine in combination with a pharmaceutically acceptable carrier, said carrier being in orally administrable form.
Claim 3
Dependent Claim
20 words
The composition according to claim 1, wherein said compound of formula (I) is dyclonine or a pharmaceutically acceptable salt thereof.
Claim 4
Dependent Claim
17 words
The composition according to claim 1, wherein said composition is in the form of a liquid .
Claim 5
Dependent Claim
17 words
The composition according to claim 1, wherein said composition is in the form of a a lozenge.
Claim 6
Dependent Claim
15 words
The composition according to claim 1, wherein said carrier is an orally acceptable solid carrier.
Claim 7
Dependent Claim
12 words
The composition according to claim 1, wherein said rapid-onset anesthetic is hexylresorcinol.
Claim 8
Dependent Claim
12 words
The composition according to claim 1, wherein said rapid-onset anesthetic is benzocaine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |