Patent US3271258A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3271258A Expired / Lapsed US ⏱️ 0.0 years remaining

Melamine and dicyandiamide as depilatory accelerators

Assignee: L'Oréal SA
•
Filing: 1963-06-19
•
Granted: 1966-09-06
•
Expires: 1983-06-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Zviak Charles
  • 👤 Rouet Jean

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/40; A61K8/43; A61K8/49; A61K8/494; A61K8/4966; A61Q; A61Q9/00; A61Q9/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 67 words
A DEPILATORY COMPOSITION COMPRISING: (A) ONE PART OF AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THIOGLYCOLIC ACID, CALCIUM THIOGLYCOLATE, STRONTIUM THIOGLYCOLATE, THIOLACTIC ACID CALCIUM THIOLACTATE AND STRONTIUM THIOLACTATE, AND (B) ONE-HALF TO TWO PARTS OF AN ACCELERATOR COMPRISING AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MELAMINE AND DICYANDIAMIDE, (C) SAID COMPOSITION HAVING A PH OF SUBSTANTIALLY 12 WHEN MIXED WITH WATER.
Claim 2
Dependent Claim 67 words
A DEPILATORY COMPOSITION COMPRISING: (A) ONE PART OF AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THIOGLYCOLIC ACID, CALCIUM THIOGLYCOLATE, STRONTIUM THIOGLYCOLATE, THIOLACTIC ACID CALCIUM THIOLACTATE AND STRONTIUM THIOLACTATE, AND (B) ONE-HALF TO TWO PARTS OF AN ACCELERATOR COMPRISING AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MELAMINE AND DICYANDIAMIDE, (C) SAID COMPOSITION HAVING A PH OF SUBSTANTIALLY 12 WHEN MIXED WITH WATER.

References Cited (Backward Citations)

NL75320C Cited
GB484467A Cited
US2836185A Cited
FR1161048A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-09-05 1970-03-07 1970-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-09-05 1974-03-07 1974-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-09-05 1978-03-07 1978-09-06 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag