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Official data from INPI

PROCESSO DE DESIDROGENAÇÃO DE ETILBENZENO OU COMPOSTOS DERIVADOS DE ETILBENZENO

Em AnáliseInvention Patent

Application data

Number

PI8700831

Type

Invention Patent

Filing

02/23/1987

Publication

09/06/1988

Progress at the INPI

  1. Filing02/23/87
  2. Publication09/06/88
  3. Abandoned12/06/88
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EDN - Estireno do Nordeste S/A

BA, BR

Inventors

E. A. (pessoa física)

BR

G. O. (pessoa física)

BR

J. N. (pessoa física)

BR

L. A. (pessoa física)

BR

P. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/06/1988

RPI 946

Publicação do pedido de patente

#3.1

09/06/1988

RPI 933

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Arquivamento - Art. 36 §1° da LPI

#11.2

09/06/1994

RPI 1240

Exigência - art. 36 da LPI

#6.1

02/22/1994

RPI 1212

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