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Official data from INPI

APERFEICOAMENTO EM TRANSMISSOR PNEUMATICO DE PRESSAO DIFERENCIAL

Em AnáliseInvention Patent

Application data

Number

PI8303727

Type

Invention Patent

Filing

07/08/1983

Publication

01/03/1984

Progress at the INPI

  1. Filing07/08/83
  2. Publication01/03/84
  3. Examination03/20/84
  4. Allowance08/11/87
  5. Grant12/29/87
  6. Terminated10/02/90

The patent was granted on 12/29/1987 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. P. (pessoa física)

Inventors

P. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/22/1989

RPI 983

Concessão da patente

#16.1

12/29/1987

RPI 897

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

11/25/1986

RPI 840

Solicitação de exame técnico

#4.1

03/20/1984

RPI 700

Publicação antecipada

#3.2

01/03/1984

RPI 689

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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