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Official data from INPI

CIRCUITO DE INTERFACE PARA CONEXÃO AOS MEIOS DE COMUNICAÇÃO DE UMA REDE DE COMUNICAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102826

Type

Invention Patent

Filing

07/04/1991

Publication

04/28/1992

Progress at the INPI

  1. Filing07/04/91
  2. Publication04/28/92
  3. Examination05/24/94
  4. Allowance10/21/97
  5. Grant09/29/98
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allen-Bradley Company, Inc

US

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Inventors

J. E. (pessoa física)

US

M. L. (pessoa física)

US

M. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

552,961 · 08/15/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/07/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

09/29/1998

RPI 1449

Deferimento

#9.1

10/21/1997

RPI 1403

Exigência - art. 36 da LPI

#6.1

01/28/1997

RPI 1365

Solicitação de exame técnico

#4.1

05/24/1994

RPI 1225

Publicação do pedido de patente

#3.1

04/28/1992

RPI 1117

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