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Official data from INPI

CIRCUITO MULTIPLEXADOR.

PublicadaInvention Patent

Application data

Number

PI8706008

Type

Invention Patent

Filing

11/09/1987

Publication

06/28/1988

Progress at the INPI

  1. Filing11/09/87
  2. Publication06/28/88
  3. Examination10/23/90
  4. Allowance10/06/92
  5. Grant05/25/93
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

See this company's full portfolio

Inventors

M. S. (pessoa física)

US

S. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

935,882 · 11/28/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/28/1988

RPI 923

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 09/11/2002

07/29/2008

RPI 1960

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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