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Official data from INPI

IMPLEMENTO PARA ESCAVAR E ABRIR CANAIS DE DRENAGEM SUPERFICIAIS.

Em AnáliseInvention Patent

Application data

Number

PI8702473

Type

Invention Patent

Filing

05/14/1987

Publication

10/27/1987

Progress at the INPI

  1. Filing05/14/87
  2. Publication10/27/87
  3. Examination04/26/88
  4. Allowance11/27/90
  5. Grant08/27/91
  6. Terminated05/14/07

The patent was granted on 08/27/1991 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Diedro - Comercial, Exportadora e Importadora Ltda

SP, BR

Inventors

A. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/26/1988

RPI 914

Publicação antecipada

#3.2

10/27/1987

RPI 888

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

Extinção — restauração

#21.2

07/13/1993

RPI 1180

20.4

01/12/1993

RPI 1154

20.7

01/12/1993

RPI 1154

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

03/12/1991

RPI 1058

Deferimento

#9.1

11/27/1990

RPI 1043

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