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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE POLÍMEROS DE BLOCO DE DIENO ESTIRENO- -METILESTIRENO

Em AnáliseInvention Patent

Application data

Number

PI8301754

Type

Invention Patent

Filing

03/30/1983

Publication

11/13/1984

Progress at the INPI

  1. Filing03/30/83
  2. Publication11/13/84
  3. Examination10/29/86
  4. Allowance12/03/91
  5. Abandoned
  6. In force

The application was allowed on 12/03/1991 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

G. L. (pessoa física)

US

L. T. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

08/16/1988

RPI 930

Solicitação de exame técnico

#4.1

10/29/1986

RPI 836

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

05/24/1983

RPI 657

Arquivamento - Art. 38 §2° da LPI

#11.4

09/22/1992

RPI 1138

Notificação para pagamento de retribuição

#13.1

04/21/1992

RPI 1116

Deferimento

#9.1

12/03/1991

RPI 1096

Exigência - art. 36 da LPI

#6.1

05/07/1991

RPI 1066

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