US2957838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair spray composition containing lower alkyl half ester of an ethylenemaleic anhydride copolymer, alcohol and propellant and process for making
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-06-10
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Granted: 1960-10-25
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles L Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K8/18; A61K8/72; A61K8/81; A61K8/8164; A61Q; A61Q5/00; A61Q5/06; Y; Y10; Y10S; Y10S424/00; Y10S424/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A COMPOSITION ADAPTED FOR USE AS A HAIR SPRAY COMPRISING (A) ABOUT 0.5-5.0 WEIGHT PERCENT OF A COPOLYMER OF MALEIC ANHYDRIDE AND AN OLEFIN CONTAINING 2-4 CARBON ATOMS, SAID COPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 25,000-70,000 AND BEING ESTERIFIED TO THE EXTENT OF 50-70% WITH A SATURATED ALIPHATIC ALCOHOL CONTAINING FROM 1-4 CARBON ATOMS, DISSOLVED IN (B) ABOUT 25-50 WEIGHT PERCENT OF A SOLVENT CONSISTING OF ANHYDROUS SATURATED ALIPHATIC ALCOHOLS CONTAINING 1-4 CARBON ATOMS AND (C) ABOUT 49-74% OF A PROPELLANT CONSISTING OF HALOGENATED ALKANES CONTAINING 1-5 CARBON ATOMS AND BEING CAPABLE OF EXERTING A TOTAL PRESSURE OF 25-50 P.S.I. AT ROOM TEMPERATURE.
Claim 2
Dependent Claim
104 words
A COMPOSITION ADAPTED FOR USE AS A HAIR SPRAY COMPRISING (A) ABOUT 0.5-5.0 WEIGHT PERCENT OF A COPOLYMER OF MALEIC ANHYDRIDE AND AN OLEFIN CONTAINING 2-4 CARBON ATOMS, SAID COPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 25,000-70,000 AND BEING ESTERIFIED TO THE EXTENT OF 50-70% WITH A SATURATED ALIPHATIC ALCOHOL CONTAINING FROM 1-4 CARBON ATOMS, DISSOLVED IN (B) ABOUT 25-50 WEIGHT PERCENT OF A SOLVENT CONSISTING OF ANHYDROUS SATURATED ALIPHATIC ALCOHOLS CONTAINING 1-4 CARBON ATOMS AND (C) ABOUT 49-74% OF A PROPELLANT CONSISTING OF HALOGENATED ALKANES CONTAINING 1-5 CARBON ATOMS AND BEING CAPABLE OF EXERTING A TOTAL PRESSURE OF 25-50 P.S.I. AT ROOM TEMPERATURE.
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |