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Official data from INPI

PROCESSO PARA OBTENÇÃO DE MISTURAS DE ETANO E ETILENO.

Em AnáliseInvention Patent

Application data

Number

PI8600420

Type

Invention Patent

Filing

02/03/1986

Publication

10/14/1986

Progress at the INPI

  1. Filing02/03/86
  2. Publication10/14/86
  3. Examination09/13/88
  4. Allowance12/01/92
  5. Grant07/27/93
  6. Terminated09/26/95

The patent was granted on 07/27/1993 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Akzo N.V.

NL

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Inventors

H. Z. (pessoa física)

DE

K. W. (pessoa física)

DE

M. B. (pessoa física)

DE

Technical data

Priority claims

DE

P 35 03 664.8 · 02/04/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

10/14/1986

RPI 834

Pedido de patente depositado

#2.1

07/22/1986

RPI 822

Anuidade - prazo legal encerrado

#18.2

09/26/1995

RPI 1295

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

04/20/1993

RPI 1168

Deferimento

#9.1

12/01/1992

RPI 1148

Exigência - art. 36 da LPI

#6.1

02/04/1992

RPI 1105

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