Patent US3577518A successfully refreshed from Google Patents.
US3577518A
Expired / Lapsed
US
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Hydrophilic hairspray and hair setting preparations
Assignee: National Patent Development Corp
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Filing: 1969-07-18
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Granted: 1971-05-04
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Expires: 1989-07-18
Abstract
Abstract HAIR SPRAY AND HAIR SETTING COMPOSITIONS ARE PREPARED FROM HYDROPHILIC COPOLYMERS OF HYDROXYALKYL ACRYLATES OR METHACRYLATES WITH MERE HYDROPHOBIC ALKYL ACRYLATES OR METHACRYLATES OR ALKOXYALKYL ACRYLATES OR METHACRYLATES. THERE CAN ALSO BE INCLUDED POLYMERIZABLE AMINO COMPOUNDS OR OLEFINIC CARBOXYLIC ACIDS. TERPOLYMERS OF ALKOXYALKYL ACRYLATES OR METHACRYLATE WITH ALKYL ACRYLATES OR METHACRYLATES WITH OLEFINIC CARBOXYLIC ACIDS OR UNSATURATED AMINES CAN ALSO BE USED AS CAN TETRAPOLYMERS OF THE MONOMERS SET FORTH.
Inventors
- 👤 Thomas H Shepherd
- 👤 Francis E Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:00
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61Q5/00; A61Q5/06; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |