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Official data from INPI

DISPOSITIVO PARA VARIAR E CONTROLAR A PRESSAO SOBRE FOLHAS DE CHA;E MAQUINA PROCESSADORA DE CHA CONTINUA OU PRENSADORA

ConcedidaInvention Patent

Application data

Number

PI7904764

Type

Invention Patent

Filing

07/25/1979

Publication

-

Progress at the INPI

  1. Filing07/25/79
  2. Publication
  3. Examination
  4. Allowance04/15/86
  5. Grant10/29/86
  6. Terminated09/25/90

The patent was granted on 10/29/1986 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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. A. (pessoa física)

Inventors

T. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

07/08/1986

RPI 820

100

04/15/1986

RPI 808

Petição de recurso

#12.2

07/12/1983

RPI 664

Indeferimento

#9.2

03/29/1983

RPI 649

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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