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Official data from INPI

EMBREAGEM DE FRICÇÃO

PublicadaInvention Patent

Application data

Number

PI8805469

Type

Invention Patent

Filing

10/21/1988

Publication

07/04/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication07/04/89
  3. Examination01/08/91
  4. Allowance03/17/92
  5. Grant01/26/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fichtel & Sachs AG

DE

Mannesmann Sachs AG

DE

See this company's full portfolio

Inventors

H. R. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 35 720.4 · 10/22/1987

DE

P3735720.4 · 10/22/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/04/1989

RPI 976

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Carta-patente expirada

#21.1

Patente extinta em 21/10/2003

09/02/2008

RPI 1965

Alteração de nome deferida

#25.4

Alterado de: Fichtel & Sachs AG

03/09/2004

RPI 1731

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

09/01/1992

RPI 1135

Deferimento

#9.1

03/17/1992

RPI 1111

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

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