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Official data from INPI

VALVULA DE RETENCAO,ACIONADA POR SUBPRESSAO,SOLICITADA POR MOLA

ConcedidaInvention Patent

Application data

Number

PI8302902

Type

Invention Patent

Filing

05/31/1983

Publication

01/22/1985

Progress at the INPI

  1. Filing05/31/83
  2. Publication01/22/85
  3. Examination05/21/85
  4. Allowance08/12/86
  5. Grant04/28/87
  6. Terminated10/02/90

The patent was granted on 04/28/1987 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MECA BUNDY GMBH [DE]

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

8.1

07/01/1986

RPI 819

Solicitação de exame técnico

#4.1

05/21/1985

RPI 761

Publicação do pedido de patente

#3.1

01/22/1985

RPI 744

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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