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Official data from INPI

APERFEIÇOAMENTO EM TÚNEL DE AVANÇO SOB PRESSÃO.

Em AnáliseInvention Patent

Application data

Number

PI8506085

Type

Invention Patent

Filing

11/27/1985

Publication

05/13/1986

Progress at the INPI

  1. Filing11/27/85
  2. Publication05/13/86
  3. Examination05/17/88
  4. Allowance08/08/89
  5. Grant09/25/90
  6. Terminated09/19/95

The patent was granted on 09/25/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Construtora Civil e Industrial S/A CONCISA

SP, BR

See this company's full portfolio

Inventors

C. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/05/1989

RPI 998

Deferimento

#9.1

08/08/1989

RPI 981

Solicitação de exame técnico

#4.1

05/17/1988

RPI 917

Solicitação de exame não realizada

#4.2

01/19/1988

RPI 900

Publicação antecipada

#3.2

05/13/1986

RPI 812

Pedido de patente depositado

#2.1

02/18/1986

RPI 800

Anuidade - prazo legal encerrado

#18.2

09/19/1995

RPI 1294

Concessão da patente

#16.1

09/25/1990

RPI 1034

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