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Official data from INPI

DISPOSITIVO DE POSICIONAMENTO E APROXIMAÇÃO GROSSA

PublicadaInvention Patent

Application data

Number

PI8703091

Type

Invention Patent

Filing

06/19/1987

Publication

03/08/1988

Progress at the INPI

  1. Filing06/19/87
  2. Publication03/08/88
  3. Examination12/04/90
  4. Allowance07/21/92
  5. Grant03/30/93
  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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM [US]

See this company's full portfolio

Inventors

C. G. (pessoa física)

CH

G. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

CH

86109284.9 · 07/08/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 19/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/30/1993

RPI 1165

Deferimento

#9.1

07/21/1992

RPI 1129

Solicitação de exame técnico

#4.1

12/04/1990

RPI 1044

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