Patent US3369970A successfully refreshed from Google Patents.
US3369970A
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US
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Dyeing human hair
Assignee: Lever Brothers Co
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Filing: 1966-11-10
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Granted: 1968-02-20
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Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Terence P Mclaughlin
- 👤 John B Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:46
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/31; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61K2800/00; A61K2800/20; A61K2800/30; A61K2800/31; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/432
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594490A
Cited
US2087597A
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US1996391A
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FR723290A
Cited
US2114370A
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US2306863A
Cited
US3086914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |