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Official data from INPI

COMPOSIÇÕES AGRÍCOLAS

Em ExigênciaInvention Patent

Application data

Number

PI8401552

Type

Invention Patent

Filing

03/30/1984

Publication

11/13/1984

Progress at the INPI

  1. Filing03/30/84
  2. Publication11/13/84
  3. Examination10/29/86
  4. Allowance06/19/90
  5. Grant02/26/91
  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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

P. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8308749 · 03/30/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/31/1989

RPI 993

Solicitação de exame técnico

#4.1

10/29/1986

RPI 836

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Carta-patente expirada

#21.1

Patente extinta em 30/03/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

10/02/1990

RPI 1035

Deferimento

#9.1

06/19/1990

RPI 1023

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