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Official data from INPI

EMPREGO DE COMPOSTOS DE p-UREIDOALQUILAMINO-NITROBENZENO EM COMPOSIÇÕES DE TINGIMENTO DE CABELO E NOVOS COMPOSTOS DE p-UREIDOALQUILAMINO-NITROBENZENO.

Em AnáliseInvention Patent
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Application data

Number

PI8504776

Type

Invention Patent

Filing

01/16/1985

Publication

12/24/1985
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Progress at the INPI

  1. Filing01/16/85
  2. Publication12/24/85
  3. Examination07/28/87
  4. Allowance04/18/95
  5. Grant11/28/95
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. A. (pessoa física)

DE

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Inventors

D. C. (pessoa física)

DE

E. K. (pessoa física)

DE

Technical data

IPC Classification

C09B 51/00

Priority claims

DE

P 34 02 519.7 · 01/26/1984

DE

PCT/EP 85/00012 · 01/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/28/1987

RPI 875

Notificação de entrada na fase nacional - PCT

#1.3

12/24/1985

RPI 792

Carta-patente expirada

#21.1

Patente extinta em 16/01/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

09/12/1995

RPI 1293

Deferimento

#9.1

04/18/1995

RPI 1272

Exigência - art. 36 da LPI

#6.1

04/12/1994

RPI 1219

6.5

10/05/1993

RPI 1192

Exigência - art. 36 da LPI

#6.1

07/20/1993

RPI 1181

Exigência - art. 36 da LPI

#6.1

04/28/1992

RPI 1117

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