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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE BENZOTIAZOLIL SULFENAMIDAS.

Em AnáliseInvention Patent

Application data

Number

PI8403395

Type

Invention Patent

Filing

07/09/1984

Publication

06/18/1985

Progress at the INPI

  1. Filing07/09/84
  2. Publication06/18/85
  3. Examination06/16/87
  4. Allowance07/24/90
  5. Grant02/13/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/16/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Akzo N.V.

NL

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Inventors

H. Z. (pessoa física)

DE

L. E. (pessoa física)

DE

M. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 33 25 724.8 · 07/16/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

06/18/1985

RPI 765

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Carta-patente expirada

#21.1

Patente extinta em 09/07/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

02/13/1991

RPI 1054

Notificação para pagamento de retribuição

#13.1

11/06/1990

RPI 1040

Deferimento

#9.1

07/24/1990

RPI 1025

Exigência - art. 36 da LPI

#6.1

02/13/1990

RPI 1006

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