US3944612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-Fluoro-3-nitro anilines
Assignee: P&G Hair Care Holding Inc
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Filing: 1970-11-27
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Granted: 1976-03-16
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Expires: 1990-11-27
Abstract
Abstract Compounds of formula:
Inventors
- 👤 Milos S. Bil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/418; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/135; C09; C09B; C09B51/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
35 words
Compounds of formula ##SPC33## wherein R 4 and R 5 are selected from the group consisting of mono-, di-, or trihydroxyalkyl having 1 to 6 carbon atoms and alkyl having 1 to 6 carbon atoms.
Claim 2
Dependent Claim
35 words
Compounds of formula ##SPC33## wherein R 4 and R 5 are selected from the group consisting of mono-, di-, or trihydroxyalkyl having 1 to 6 carbon atoms and alkyl having 1 to 6 carbon atoms.
Claim 3
Dependent Claim
22 words
Compounds according to claim 1 wherein R 4 and R 5 are mono-, di- or trihydroxyalkyl having 1 to 6 carbon atoms.
Claim 4
Dependent Claim
14 words
A compound according to claim 2 wherein R 4 and R 5 are β-hydroxyethyl.
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |