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Official data from INPI

DISPOSITIVO DOSADOR DE PRODUTOS EM GRÃOS OU PULVERULENTOS, CONJUNTO DE INCORPORAÇÃO DE NEGRO DE FUMO E PROCESSO DE MISTURAÇÃO CONTÍNUA DE BORRACHA NÃO VULCANIZADA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102978

Type

Invention Patent

Filing

07/12/1991

Publication

02/11/1992

Progress at the INPI

  1. Filing07/12/91
  2. Publication02/11/92
  3. Examination04/19/94
  4. Allowance04/25/95
  5. Grant10/31/95
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SEDEPRO

FR

See this company's full portfolio

Inventors

D. L. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

90/09011 · 07/12/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/07/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

04/25/1995

RPI 1273

Solicitação de exame técnico

#4.1

04/19/1994

RPI 1220

Publicação do pedido de patente

#3.1

02/11/1992

RPI 1106

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