US3634368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-forming composition
Assignee: Wyeth Holdings LLC
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Filing: 1969-09-29
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Granted: 1972-01-11
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Expires: 1989-09-29
Abstract
Abstract COMPOSITIONS ADAPTED FOR USE AS AN AEROSOL SPRAY AND CONTAINING A TETRAPOLYMER OF (A) N-T-BUTYL ACRYLAMIDE OR N-ISOPROPYL ACRYLAMIDE, (B) ACRYLAMIDE OR METHACRYLAMIDE, (C) N-VINYL PYRROLIDONE AND (D) ACRYLIC OR METHACRYLIC ACID, AND HAIR SPRAY COMPOSITIONS PER SE, ARE DISCLOSED.
Inventors
- 👤 Lucille Elma Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:55
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61K8/8182; A61Q; A61Q5/00; A61Q5/06; Y; Y10; Y10S; Y10S424/00; 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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |