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Official data from INPI

DISPOSITIVO E PROCESSO PARA A SEPARAÇÃO DE PRODUTOSA PESADOS, ESPECIALMENTER PEDRAS OU SIMILARES, DE GRÃOS E OUTROS PRODUTOS A GRANEL.

Em AnáliseInvention Patent

Application data

Number

PI8506704

Type

Invention Patent

Filing

05/08/1985

Publication

04/15/1986

Progress at the INPI

  1. Filing05/08/85
  2. Publication04/15/86
  3. Examination05/05/87
  4. Allowance05/18/93
  5. Grant09/28/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 05/05/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Buhler Ag.

CH

See this company's full portfolio

Inventors

R. M. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

2240/84-8 · 05/08/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/05/1987

RPI 863

Notificação de entrada na fase nacional - PCT

#1.3

04/15/1986

RPI 808

Carta-patente expirada

#21.1

Patente extinta em 08/05/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/28/1993

RPI 1191

Deferimento

#9.1

05/18/1993

RPI 1172

Exigência - art. 36 da LPI

#6.1

10/06/1992

RPI 1140

14.4

01/29/1991

RPI 1052

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