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Official data from INPI

PROCESSO PARA PRODUZIR UM DERIVADO DE BENZOILURÉIA

Em AnáliseInvention Patent

Application data

Number

PI8500851

Type

Invention Patent

Filing

02/26/1985

Publication

10/15/1985

Progress at the INPI

  1. Filing02/26/85
  2. Publication10/15/85
  3. Examination10/06/87
  4. Allowance09/29/92
  5. Grant04/27/93
  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.

Talk to a specialist

Latest action published by the INPI: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Takeda Chemical Industries, Ltd., companhia japonesa

JP

Inventors

H. N. (pessoa física)

JP

Y. S. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

36882/84 · 02/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

05/14/1985

RPI 760

Carta-patente expirada

#21.1

Patente extinta em 26/02/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

09/29/1992

RPI 1139

Exigência - art. 36 da LPI

#6.1

08/20/1991

RPI 1081

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