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Official data from INPI

CLASSIFICADOR

Em AnáliseInvention Patent

Application data

Number

PI8604755

Type

Invention Patent

Filing

10/01/1986

Publication

06/30/1987

Progress at the INPI

  1. Filing10/01/86
  2. Publication06/30/87
  3. Examination10/11/88
  4. Allowance01/02/91
  5. Grant09/24/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Krupp Polysius AG

DE

See this company's full portfolio

Inventors

L. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 39 512.5 · 11/07/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/11/1988

RPI 938

Publicação do pedido de patente

#3.1

06/30/1987

RPI 871

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 01/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

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