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Official data from INPI

EMBREAGEM DE ATRITO DE FLUIDO

PublicadaInvention Patent

Application data

Number

PI8801635

Type

Invention Patent

Filing

04/06/1988

Publication

11/07/1989

Progress at the INPI

  1. Filing04/06/88
  2. Publication11/07/89
  3. Examination10/23/90
  4. Allowance12/08/92
  5. Grant06/29/93
  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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Behr GmbH & Co.

DE

Sueddeutsche Kuehlerfabrik Julius Fr Behr GmbH & Co Kg

DE

See this company's full portfolio

Inventors

W. N. (pessoa física)

DE

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/07/1989

RPI 994

Pedido de patente depositado

#2.1

08/09/1988

RPI 929

Carta-patente expirada

#21.1

Patente extinta em 06/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/20/1993

RPI 1168

Deferimento

#9.1

12/08/1992

RPI 1149

14.4

04/21/1992

RPI 1116

Exigência - art. 36 da LPI

#6.1

11/05/1991

RPI 1092

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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