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Official data from INPI

VEDACAO HIDRODINAMICA DE EIXOS

Em AnáliseInvention Patent

Application data

Number

PI7704423

Type

Invention Patent

Filing

08/23/1976

Publication

-

Progress at the INPI

  1. Filing08/23/76
  2. Publication
  3. Examination
  4. Allowance07/20/82
  5. Grant05/29/84
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 12/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DANA CORP

See this company's full portfolio

Inventors

A. J. (pessoa física)

S. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

12/17/1985

RPI 791

Pedido de licença voluntária

#17.1

07/16/1985

RPI 769

Concessão da patente

#16.1

05/29/1984

RPI 710

110

03/07/1984

RPI 698

Recurso

#12.1

11/16/1982

RPI 630

Deferimento

#9.1

07/20/1982

RPI 613

Exigência - art. 36 da LPI

#6.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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