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Official data from INPI

VALVULA DE ALIVIO DE PRESSAO OPERADA A PILOTO E VALVULA DE ALIVIO EQUILIBRADA

ConcedidaInvention Patent

Application data

Number

PI8104595

Type

Invention Patent

Filing

07/25/1980

Publication

04/06/1982

Progress at the INPI

  1. Filing07/25/80
  2. Publication04/06/82
  3. Examination03/13/84
  4. Allowance11/18/86
  5. Grant07/28/87
  6. Terminated08/07/90

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VAPOR CORP [US]

Inventors

M. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

11/18/1986

RPI 839

Exigência - art. 36 da LPI

#6.1

12/24/1985

RPI 792

Exigência - art. 36 da LPI

#6.1

04/23/1985

RPI 757

Pedido de certificado de adição de invenção

#5.1

08/07/1984

RPI 720

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Republicação - classificação IPC

#15.11

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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