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Official data from INPI

PROCESSO PARA SULFONAR A SUPERFÍCIE INTERNA DE UM ELEMENTO DE INVÓLUCRO E MATERIAL COMPOSITO

Em AnáliseInvention Patent
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Application data

Number

PI8604854

Type

Invention Patent

Filing

10/06/1986

Publication

07/07/1987
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Progress at the INPI

  1. Filing10/06/86
  2. Publication07/07/87
  3. Examination09/01/87
  4. Allowance06/20/95
  5. Abandoned
  6. In force

The application was allowed on 06/20/1995 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: 09/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

W. E. (pessoa física)

Technical data

IPC Classification

C08F 8/36

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/01/1987

RPI 880

Publicação do pedido de patente

#3.1

07/07/1987

RPI 872

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Arquivamento - Art. 38 §2° da LPI

#11.4

09/03/1996

RPI 1344

Notificação para pagamento de retribuição

#13.1

10/31/1995

RPI 1300

Deferimento

#9.1

06/20/1995

RPI 1281

Exigência - art. 36 da LPI

#6.1

02/24/1993

RPI 1160

Exigência - art. 36 da LPI

#6.1

10/08/1991

RPI 1088

6.2

08/07/1990

RPI 1027

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