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Official data from INPI

EMBREAGEM DE ATRITO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905326

Type

Invention Patent

Filing

10/20/1989

Publication

05/22/1990

Progress at the INPI

  1. Filing10/20/89
  2. Publication05/22/90
  3. Examination06/09/92
  4. Allowance06/21/94
  5. Grant03/01/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fichtel & Sachs Ag

DE

See this company's full portfolio

Inventors

E. S. (pessoa física)

DE

W. G. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 38 307.1 · 11/11/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/01/1995

RPI 1265

Notificação para pagamento de retribuição

#13.1

10/25/1994

RPI 1247

Deferimento

#9.1

06/21/1994

RPI 1229

Exigência - art. 36 da LPI

#6.1

10/13/1993

RPI 1193

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

05/22/1990

RPI 1019

Pedido de patente depositado

#2.1

03/01/1990

RPI 1007

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