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Official data from INPI

ESTRUTURA DE VALVULA

ConcedidaInvention Patent

Application data

Number

PI8104700

Type

Invention Patent

Filing

07/22/1980

Publication

04/06/1982

Progress at the INPI

  1. Filing07/22/80
  2. Publication04/06/82
  3. Examination07/13/82
  4. Allowance09/04/84
  5. Grant03/26/85
  6. Terminated09/25/90

The patent was granted on 03/26/1985 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: 03/26/1985. 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

03/26/1985

RPI 753

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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