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Official data from INPI

PROCESSO PARA PURIFICACAO DE UM ACIDO FOSFORICO EXTRAIDO,E ACIDO FOSFORICO ASSIM PURIFICADO

Em AnáliseInvention Patent

Application data

Number

PI7700735

Type

Invention Patent

Filing

02/13/1976

Publication

-

Progress at the INPI

  1. Filing02/13/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Terminated12/08/87

The patent was granted on 07/27/1982 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOYO SODA MFG CO LTD

Inventors

H. Y. (pessoa física)

K. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

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