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Official data from INPI

PROCESSO PARA A REMOCAO E/OU RETARDAMENTO DA FORMACAO DE PARAFINAS EM SUPERFICIES EM CONTATO COM PETROLEO OU GAS NATURAL CONTENDO TAL PARAFINA

DeferidaInvention Patent

Application data

Number

PI8406988

Type

Invention Patent

Filing

08/01/1983

Publication

07/02/1985

Progress at the INPI

  1. Filing08/01/83
  2. Publication07/02/85
  3. Examination06/16/87
  4. Allowance06/13/89
  5. Abandoned
  6. In force

The application was allowed on 06/13/1989 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

C. [. (pessoa física)

H. J. (pessoa física)

J. [. (pessoa física)

M. [. (pessoa física)

S. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

9.1.3

09/05/1989

RPI 985

Deferimento

#9.1

06/13/1989

RPI 973

Exigência - art. 36 da LPI

#6.1

10/11/1988

RPI 938

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

07/02/1985

RPI 767

Arquivamento - Art. 38 §2° da LPI

#11.4

06/19/1990

RPI 1023

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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