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Official data from INPI

VÁLVULA DE REGULAGEM AUTOMÁTICA DE NÍVEL

PublicadaInvention Patent

Application data

Number

PI8702999

Type

Invention Patent

Filing

06/12/1987

Publication

03/08/1988

Progress at the INPI

  1. Filing06/12/87
  2. Publication03/08/88
  3. Examination10/02/90
  4. Allowance04/30/91
  5. Grant11/26/91
  6. Terminated10/17/95

The patent was granted on 11/26/1991 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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alsthom

FR

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Inventors

G. D. (pessoa física)

FR

G. C. (pessoa física)

FR

Technical data

Priority claims

FR

86 08 560 · 06/13/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/29/1987

RPI 884

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

08/13/1991

RPI 1080

Deferimento

#9.1

04/30/1991

RPI 1065

Solicitação de exame técnico

#4.1

10/02/1990

RPI 1035

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