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Official data from INPI

VALVULA

ConcedidaInvention Patent

Application data

Number

PI8206436

Type

Invention Patent

Filing

11/06/1981

Publication

09/27/1983

Progress at the INPI

  1. Filing11/06/81
  2. Publication09/27/83
  3. Examination01/10/84
  4. Allowance08/06/85
  5. Grant05/13/86
  6. Terminated10/16/90

The patent was granted on 05/13/1986 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: 05/13/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANADYNE INC [US]

Inventors

M. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/13/1986

RPI 812

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

01/10/1984

RPI 690

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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