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Official data from INPI

RETARDADOR HIDRODINÂMICO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101421

Type

Invention Patent

Filing

04/03/1991

Publication

11/26/1991

Progress at the INPI

  1. Filing04/03/91
  2. Publication11/26/91
  3. Examination02/08/94
  4. Allowance10/04/94
  5. Grant06/27/95
  6. Expired06/22/10

The letters patent expired on 06/22/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/22/2010. 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

K. V. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 10 970.4 · 04/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/04/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/07/1995

RPI 1262

Deferimento

#9.1

10/04/1994

RPI 1244

Solicitação de exame técnico

#4.1

02/08/1994

RPI 1210

Publicação do pedido de patente

#3.1

11/26/1991

RPI 1095

Pedido de patente depositado

#2.1

10/08/1991

RPI 1088

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