US3285819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(n-propyl-n-vinylacetamide) in hair setting compositions
Assignee: Monsanto Co
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Filing: 1963-10-18
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Granted: 1966-11-15
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Robert B Blance
- 👤 Saul M Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:41
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/06; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/817; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A HAIR LACQUER COMPOSITION, COMPRISING A HOMOPOLYMER OF N-PROPYL-N-VINYLACETAMIDE HAVING AN INTRINSIC VISOCITY WITHIN THE RANGE OF 0.15 TO 0.35 DL./G. IN BENZENE AT 25*C., WHICH IS DISSOLVED IN A QUICK-DRYING SUBSTANTIALLY ANHYDROUS ALKYL ALCOHOL TO GIVE A LACQUER COMPOSITION HAVING A HOMOPOLYMER CONTENT OF 4 TO 12% BY WEIGHT BASED ON THE TOTAL WEIGHT OF HOMOPOLYMER AND ALCOHOL.
Claim 2
Dependent Claim
59 words
A HAIR LACQUER COMPOSITION, COMPRISING A HOMOPOLYMER OF N-PROPYL-N-VINYLACETAMIDE HAVING AN INTRINSIC VISOCITY WITHIN THE RANGE OF 0.15 TO 0.35 DL./G. IN BENZENE AT 25*C., WHICH IS DISSOLVED IN A QUICK-DRYING SUBSTANTIALLY ANHYDROUS ALKYL ALCOHOL TO GIVE A LACQUER COMPOSITION HAVING A HOMOPOLYMER CONTENT OF 4 TO 12% BY WEIGHT BASED ON THE TOTAL WEIGHT OF HOMOPOLYMER AND ALCOHOL.
References Cited (Backward Citations)
DE1151940B
Cited
US3212972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |