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Official data from INPI

GERADOR ELETROQUIMICO E PROCESSO DE PREPARAR UM APERFEICOADO SEPARADOR DE CELULOSE E PRATA PARA USO NO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7705655

Type

Invention Patent

Filing

08/25/1977

Publication

-

Progress at the INPI

  1. Filing08/25/77
  2. Publication
  3. Examination
  4. Allowance10/06/81
  5. Grant07/27/82
  6. Terminated07/12/88

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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

YARDNEY ELECTRIC CORP

Inventors

C. R. (pessoa física)

S. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

02/02/1982

RPI 589

15.0

10/06/1981

RPI 572

Deferimento

#9.1

10/06/1981

RPI 572

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