US3171784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of vinyl pyrrolidone and vinyl acetate as aerosol hair spray
Assignee: GAF Chemicals Corp
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Filing: 1956-11-09
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Granted: 1965-03-02
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Expires: 1976-11-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Witwer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/06; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61K8/8182; B; B29; B29B; B29B15/00; B29B15/02; C; C08; C08C; C08C3/00; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS OF KEEPING HUMAN HAIR IN PLACE WHICH COMPRISES SPRAYING SAID HAIR WITH A FINE MIST DISPENSED FROM AN AEROSOL CONTAINER WHOSE ESSENTIAL CONTENTS CONSIST OF A VOLATILE, CHLORO-FLUORO-SUBSTITUTED LOWER ALIPHATIC HYDROCARBON PROPELLENT HAVING DISSOLVED THEREIN A COPOLYMER CONSISTING OF ABOUT 30-90% VINYL PYRROLIDONE AND ABOUT 10-70% BY WEIGHT OF VINYL ACETATE, AND ETHYL ALCOHOL.
Claim 2
Dependent Claim
56 words
THE PROCESS OF KEEPING HUMAN HAIR IN PLACE WHICH COMPRISES SPRAYING SAID HAIR WITH A FINE MIST DISPENSED FROM AN AEROSOL CONTAINER WHOSE ESSENTIAL CONTENTS CONSIST OF A VOLATILE, CHLORO-FLUORO-SUBSTITUTED LOWER ALIPHATIC HYDROCARBON PROPELLENT HAVING DISSOLVED THEREIN A COPOLYMER CONSISTING OF ABOUT 30-90% VINYL PYRROLIDONE AND ABOUT 10-70% BY WEIGHT OF VINYL ACETATE, AND ETHYL ALCOHOL.
References Cited (Backward Citations)
US2497705A
Cited
US2667473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |