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Official data from INPI

MÁQUINA HIDRÁULICA COM UMA CARCAÇA ESPIRAL

ConcedidaInvention Patent

Application data

Number

PI8503719

Type

Invention Patent

Filing

08/02/1985

Publication

05/13/1986

Progress at the INPI

  1. Filing08/02/85
  2. Publication05/13/86
  3. Examination07/12/88
  4. Allowance03/28/89
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. M. Voith GmbH

DE

See this company's full portfolio

Inventors

E. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 28 473 · 08/02/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/18/1989

RPI 978

Deferimento

#9.1

03/28/1989

RPI 962

15.9

07/12/1988

RPI 925

Solicitação de exame técnico

#4.1

07/12/1988

RPI 925

Publicação do pedido de patente

#3.1

05/13/1986

RPI 812

Pedido de patente depositado

#2.1

10/15/1985

RPI 782

Carta-patente expirada

#21.1

Patente extinta em 02/08/2000

07/15/2008

RPI 1958

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