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Official data from INPI

PROCESSO PARA COMPACTACAO DE PO E DISPOSITIVO PARA CONDUZIR O PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI7804261

Type

Invention Patent

Filing

07/04/1977

Publication

-

Progress at the INPI

  1. Filing07/04/77
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant05/31/83
  6. Terminated06/14/88

The patent was granted on 05/31/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CERAC INST SA

Inventors

L. B. (pessoa física)

R. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

12/28/1982

RPI 636

Deferimento

#9.1

08/17/1982

RPI 617

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

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