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Official data from INPI

DISPOSITIVO PARA A REMOÇÃO DE IMPUREZAS COMO REFUGO, PARTES DE CASCAS E SEMELHANTES MATERIAIS PARA UMA CARDA OU UNIDADE CORRELATA

PublicadaInvention Patent

Application data

Number

PI8705739

Type

Invention Patent

Filing

10/28/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing10/28/87
  2. Publication07/19/88
  3. Examination09/25/90
  4. Allowance06/14/94
  5. Grant01/31/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Truetzschler GmbH & Co. Kg

DE

See this company's full portfolio

Inventors

F. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 44 529.0 · 12/24/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 28/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

10/18/1994

RPI 1246

Deferimento

#9.1

06/14/1994

RPI 1228

Exigência - art. 36 da LPI

#6.1

11/23/1993

RPI 1199

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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