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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE DERIVADOS DE TETRACIANODIHIDROFURANO, TETRACIANO-TETRAHIDROFURANO E TETRACIANO-3-OXABICICLO ALCANOS E ALQUENOS.

Em AnáliseInvention Patent

Application data

Number

PI8604855

Type

Invention Patent

Filing

10/06/1986

Publication

07/07/1987

Progress at the INPI

  1. Filing10/06/86
  2. Publication07/07/87
  3. Examination11/07/89
  4. Allowance09/08/93
  5. Grant03/29/94
  6. Terminated06/25/96

The patent was granted on 03/29/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/07/1989. 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

J. H. (pessoa física)

GB

P. S. (pessoa física)

GB

S. H. (pessoa física)

GB

Technical data

Priority claims

GB

8524659 · 10/07/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

07/07/1987

RPI 872

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

09/08/1993

RPI 1188

Exigência - art. 36 da LPI

#6.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

05/05/1992

RPI 1118

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