US5322683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anhydrous aerosol foam
Assignee: Individual
•
Filing: 1989-05-01
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Granted: 1994-06-21
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Expires: 2009-05-01
Abstract
Abstract There is provided an anhydrous topically applicable aerosol foam composition comprising a foamable anhydrous liquid, a foaming agent selected from the group consisting of methyl glucose C16-C18 aliphatic acid esters and a propellant, said propellant being capable of existing in gaseous form at ambient pressure and temperature and being present in an amount sufficient to produce a stable measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve.
Inventors
- 👤 Leonard Mackles
- 👤 Leonard Chavkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:54
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/12; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K9/00; A61K9/10; A61K9/12; A61K9/122; A61Q19/00; A61K2800/00; A61K2800/20; A61K2800/24; A61K2800/242; A61K2800/30; A61K2800/31; A61Q15/00; A61Q17/00; A61Q17/04; A61Q19/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
An anhydrous topically applicable aerosol foam composition comprising a) a foamable topically absorbable anhydrous liquid, selected from the group consisting of glycerol fatty acid esters, acetylated monoglycerides, di- and triethyl esters of organic hydrocarbon acids, monoesters of aromatic monocarboxylic acids and water soluble glycols, b) a foaming agent selected from the group consisting of methyl glucose C 16 -C 18 aliphatic acid esters and c) a propellant, said propellant being capable of existing in gaseous form at ambient pressure and temperature and being present in an amount sufficient to produce a stable measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve.
Claim 2
Dependent Claim
109 words
An anhydrous topically applicable aerosol foam composition comprising a) a foamable topically absorbable anhydrous liquid, selected from the group consisting of glycerol fatty acid esters, acetylated monoglycerides, di- and triethyl esters of organic hydrocarbon acids, monoesters of aromatic monocarboxylic acids and water soluble glycols, b) a foaming agent selected from the group consisting of methyl glucose C 16 -C 18 aliphatic acid esters and c) a propellant, said propellant being capable of existing in gaseous form at ambient pressure and temperature and being present in an amount sufficient to produce a stable measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve.
Claim 3
Dependent Claim
52 words
A composition of claim 1 comprising: about 35 to about 95% by weight of the total composition of said foamable anhydrous liquid, about 0.2 to about 10% by weight of the total composition of said foaming agent, and about 2 to about 15% by weight of the total composition of said propellant.
Claim 4
Dependent Claim
20 words
A composition of claim 2 comprising: about 3 to about 10% by weight of the total composition of said propellant.
Claim 5
Dependent Claim
31 words
A composition of claim 1 additionally comprising between about 0.1 to about 50% by weight of the total composition of a topically applicable pharmacologically active composition of at least one component.
Claim 6
Dependent Claim
25 words
A composition of claim 4 wherein the topically applicable pharmacologically active composition comprises a solid suspendable in or a material soluble in the total composition.
Claim 7
Dependent Claim
31 words
A composition of claim 5 comprising at least one member of the group consisting of topical anesthetics, analgesics, antimicrobials, antibiotics, enzymes, heat generating agents, skin and hair conditioners, colorants and fragrances.
Claim 8
Dependent Claim
23 words
A composition of claim 1 wherein the foaming agent is selected from the group consisting of methyl glucose sesquistearate and methyl glucose dioleate.
Claim 9
Dependent Claim
28 words
A composition of claim 1 wherein the propellant is selected from the group consisting of aliphatic hydrocarbon propellants, fluorocarbons, dimethyl ether propellants, carbon dioxide, nitrogen and nitrous oxide.
Claim 10
Dependent Claim
18 words
A composition of claim 1 wherein the propellant is selected from the group consisting of aliphatic hydrocarbon propellants.
Claim 11
Dependent Claim
10 words
A composition of claim 1 wherein the propellant is propane.
Claim 12
Dependent Claim
40 words
A composition of claim 1 wherein the foamable liquid comprises at least one member selected from the group consisting of glycerol fatty acid esters, di-and tri-ethyl esters of organic hydrocarbon acids, monoesters of aromatic monocarboxylic acids, and water soluble glycols.
Claim 13
Dependent Claim
20 words
A composition of claim 1 wherein the foamable liquid comprises at least one component which is a topically active substance.
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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) | 1997-06-20 | 1997-12-20 | 1998-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-20 | 2001-12-20 | 2002-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-20 | 2005-12-20 | 2006-06-21 | $7700.00 | Window Closed / Lapsed |