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Official data from INPI

PROCESSO E CONJUNTO PARA EFETUAR UMA DIVISÃO ARITMÉTICA APROXIMADA

Arquivada/ExtintaInvention PatentPCT · SE1990000574

Application data

Number

PI9006933

Type

Invention Patent

Filing

09/10/1990

Publication

11/05/1991

PCT

SE1990000574

Progress at the INPI

  1. Filing09/10/90
  2. Publication11/05/91
  3. Examination06/29/93
  4. Allowance10/06/98
  5. Grant02/23/99
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

SE

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Inventors

M. K. (pessoa física)

SE

T. A. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8903265-0 · 10/04/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/09/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

02/23/1999

RPI 1468

Deferimento

#9.1

10/06/1998

RPI 1450

Solicitação de exame técnico

#4.1

06/29/1993

RPI 1178

Notificação de entrada na fase nacional - PCT

#1.3

11/05/1991

RPI 1092

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