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Official data from INPI

VÁLVULA DE EXPANSÃO

ConcedidaInvention Patent

Application data

Number

PI8406334

Type

Invention Patent

Filing

12/11/1984

Publication

10/08/1985

Progress at the INPI

  1. Filing12/11/84
  2. Publication10/08/85
  3. Examination10/27/87
  4. Allowance12/20/88
  5. Grant09/26/89
  6. Terminated07/04/95

The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ernst Flitsch Gmbh & Co.

DE

Inventors

R. G. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 33 44 816.7 · 12/12/1983

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

04/25/1989

RPI 966

Deferimento

#9.1

12/20/1988

RPI 948

Exigência - art. 36 da LPI

#6.1

06/21/1988

RPI 922

Solicitação de exame técnico

#4.1

10/27/1987

RPI 888

Publicação do pedido de patente

#3.1

10/08/1985

RPI 781

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Anuidade - prazo legal encerrado

#18.2

07/04/1995

RPI 1283

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