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US3516778A Expired / Lapsed US ⏱️ 0.0 years remaining

Naphthoquinone imine compositions and method for using the same

Assignee: P&G Hair Care Holding Inc
•
Filing: 1964-06-09
•
Granted: 1970-06-23
•
Expires: 1984-06-09
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Abstract

No abstract record available.

Inventors

  • 👤 Walter H Brunner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 07:19
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/413; A61K8/415

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE118078C Cited
US2135366A Cited
CA639191A Cited
FR464464A Cited
GB493147A Cited
US2553046A Cited
FR969178A Cited
GB653356A Cited
US2769821A Cited
US2745788A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-06-22 1973-12-22 1974-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-06-22 1977-12-22 1978-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-06-22 1981-12-22 1982-06-23 $7700.00 Window Closed / Lapsed

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