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Official data from INPI

VÁLVULA ANGULAR DE PASSAGEM LIVRE

PublicadaInvention Patent

Application data

Number

PI8702930

Type

Invention Patent

Filing

05/22/1987

Publication

09/22/1987

Progress at the INPI

  1. Filing05/22/87
  2. Publication09/22/87
  3. Examination
  4. Allowance05/08/90
  5. Grant08/27/91
  6. Terminated11/21/95

The patent was granted on 08/27/1991 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: 09/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caldema Equipamentos Industriais Ltda.

SP, BR

Inventors

A. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

09/22/1987

RPI 883

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Anuidade - prazo legal encerrado

#18.2

11/21/1995

RPI 1303

Concessão da patente

#16.1

08/27/1991

RPI 1082

14.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

08/21/1990

RPI 1029

Deferimento

#9.1

05/08/1990

RPI 1017

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