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US3472243A Expired / Lapsed US ⏱️ 0.0 years remaining

Treating damaged living human hair with water soluble polymerizable vinyl monomers

Assignee: P&G Hair Care Holding Inc
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Filing: 1965-09-27
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Granted: 1969-10-14
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Expires: 1985-09-27
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Abstract

No abstract record available.

Inventors

  • 👤 Robert A Wall
  • 👤 Percy Fainer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 02:12
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8147; A61Q; A61Q5/00; A61Q5/12; A61K2800/00; A61K2800/80; A61K2800/95

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

BE535040A Cited
CH224787A Cited
US2335454A Cited
US2667473A Cited
US2818362A Cited
US2890094A Cited
US2961431A Cited
DE1160983B Cited
DE1151940B Cited
DE1162509B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-10-13 1973-04-14 1973-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-10-13 1977-04-14 1977-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-10-13 1981-04-14 1981-10-14 $7700.00 Window Closed / Lapsed

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