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Official data from INPI

SEM TITULO

Em ExigênciaInvention Patent

Application data

Number

PI8406886

Type

Invention Patent

Filing

07/20/1984

Publication

04/16/1985

Progress at the INPI

  1. Filing07/20/84
  2. Publication04/16/85
  3. Examination07/28/87
  4. Allowance
  5. Grant12/26/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

K. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/03/1989

RPI 989

Solicitação de exame técnico

#4.1

07/28/1987

RPI 875

Notificação de entrada na fase nacional - PCT

#1.3

04/16/1985

RPI 756

Carta-patente expirada

#21.1

Patente extinta em 20/07/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

12/26/1990

RPI 1047

Arquivamento - Art. 36 §1° da LPI

#11.2

04/10/1990

RPI 1013

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