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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM COMPOSTO DE OXABICICLOALCANO

Em AnáliseInvention Patent

Application data

Number

PI8403994

Type

Invention Patent

Filing

08/09/1984

Publication

07/09/1985

Progress at the INPI

  1. Filing08/09/84
  2. Publication07/09/85
  3. Examination06/16/87
  4. Allowance10/02/90
  5. Grant04/30/91
  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

Shell Internationale Research Maatschappij B.V

NL

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Inventors

A. M. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8321713 · 08/12/1983

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

07/09/1985

RPI 768

Pedido de patente depositado

#2.1

10/16/1984

RPI 730

Carta-patente expirada

#21.1

Patente extinta em 09/08/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

01/15/1991

RPI 1050

Deferimento

#9.1

10/02/1990

RPI 1035

Exigência - art. 36 da LPI

#6.1

04/24/1990

RPI 1015

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