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Official data from INPI

ACOPLAMENTO HIDRODINÂMICO

PublicadaInvention Patent

Application data

Number

PI8701722

Type

Invention Patent

Filing

03/20/1987

Publication

01/05/1988

Progress at the INPI

  1. Filing03/20/87
  2. Publication01/05/88
  3. Examination08/21/90
  4. Allowance05/28/91
  5. Grant11/26/91
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 01/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Voith Turbo GmbH & CO. KG.

DE

See this company's full portfolio

Inventors

B. S. (pessoa física)

DE

H. H. (pessoa física)

DE

J. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 10 106.0 · 03/26/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

07/21/1987

RPI 874

Carta-patente expirada

#21.1

Patente extinta em 20/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

09/10/1991

RPI 1084

Deferimento

#9.1

05/28/1991

RPI 1069

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

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