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Official data from INPI

DESENTUPIDOR DE PIA.

ConcedidaInvention Patent

Application data

Number

PI8405336

Type

Invention Patent

Filing

10/10/1984

Publication

05/20/1986

Progress at the INPI

  1. Filing10/10/84
  2. Publication05/20/86
  3. Examination
  4. Allowance
  5. Grant09/26/89
  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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

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Inventors

A. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Retificação

#15.3

09/22/1987

RPI 883

Publicação do pedido de patente

#3.1

05/20/1986

RPI 813

Pedido de patente depositado

#2.1

01/08/1985

RPI 742

Carta-patente expirada

#21.1

Patente extinta em 10/10/99

07/08/2008

RPI 1957

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