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Official data from INPI

CIRCUITO VITAL DE DETECÇÃO DE COINCIDÊNCIA

Em ExigênciaInvention Patent

Application data

Number

PI8504374

Type

Invention Patent

Filing

09/10/1985

Publication

07/08/1986

Progress at the INPI

  1. Filing09/10/85
  2. Publication07/08/86
  3. Examination06/21/88
  4. Allowance01/14/92
  5. Grant11/24/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Switch & Signal, Inc.

US

See this company's full portfolio

Inventors

R. C. (pessoa física)

US

Technical data

Priority claims

US

651.731 · 09/17/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

06/21/1988

RPI 922

3.4

08/19/1986

RPI 826

Publicação do pedido de patente

#3.1

07/08/1986

RPI 820

Pedido de patente depositado

#2.1

11/19/1985

RPI 787

Carta-patente expirada

#21.1

Patente extinta em 10/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/24/1992

RPI 1147

Republicação - classificação IPC

#15.11

09/22/1992

RPI 1138

Notificação para pagamento de retribuição

#13.1

06/30/1992

RPI 1126

Deferimento

#9.1

01/14/1992

RPI 1102

Republicação - classificação IPC

#15.11

11/05/1991

RPI 1092

Exigência - art. 36 da LPI

#6.1

07/16/1991

RPI 1076

14.1

06/05/1990

RPI 1021

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