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Official data from INPI

PROCESSO E APARELHO PARA A PRODUÇÃO DE PRODUTOS DE CERDAS

Prazo de SigiloInvention Patent

Application data

Number

PI8902894

Type

Invention Patent

Filing

06/15/1989

Publication

02/01/1990

Progress at the INPI

  1. Filing06/15/89
  2. Publication02/01/90
  3. Examination04/14/92
  4. Allowance08/05/97
  5. Grant11/24/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Coronet-Werke Heinrich Schlerf GmbH

DE

Inventors

G. W. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 20 372.3 · 06/15/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/25/1989

RPI 979

Carta-patente expirada

#21.1

Patente extinta em 15/06/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

08/05/1997

RPI 1392

Solicitação de exame técnico

#4.1

04/14/1992

RPI 1115

Publicação do pedido de patente

#3.1

02/01/1990

RPI 1004

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