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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104690

Type

Invention Patent

Filing

07/21/1981

Publication

04/06/1982

Progress at the INPI

  1. Filing07/21/81
  2. Publication04/06/82
  3. Examination
  4. Allowance
  5. Grant04/29/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHOPLIN JEAN P [FR]

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Arquivamento - Art. 33 da LPI

#11.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

Patente extinta em 21/07/96

08/19/2008

RPI 1963

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