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Official data from INPI

MICRO-QUARTEADOR

Em AnáliseInvention Patent

Application data

Number

PI8704948

Type

Invention Patent

Filing

09/25/1987

Publication

03/28/1989

Progress at the INPI

  1. Filing09/25/87
  2. Publication03/28/89
  3. Examination10/31/89
  4. Allowance11/19/91
  5. Grant12/29/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

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Inventors

N. L. (pessoa física)

BR

R. G. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/31/1989

RPI 993

Publicação do pedido de patente

#3.1

03/28/1989

RPI 962

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 25/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

12/29/1992

RPI 1152

11.8

11/10/1992

RPI 1145

Arquivamento - Art. 38 §2° da LPI

#11.4

10/06/1992

RPI 1140

Notificação para pagamento de retribuição

#13.1

04/07/1992

RPI 1114

Deferimento

#9.1

11/19/1991

RPI 1094

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