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Official data from INPI

PROCESSO PARA A PRODUCAO DE MISTURAS DE BORRACHA E CARGA,EM FORMA DE PO,LIVREMENTE ESCOAVEIS,EVENTUALMENTE CONTENDO OLEO PLASTIFICANTE,MISTURAS ASSIM OBTIDAS,E SUA APLICACAO

Em AnáliseInvention Patent

Application data

Number

PI7707964

Type

Invention Patent

Filing

12/01/1976

Publication

-

Progress at the INPI

  1. Filing12/01/76
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant09/27/83
  6. Terminated11/16/88

The patent was granted on 09/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HUELS CHEMISCHE WERKE AG

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Inventors

B. G. (pessoa física)

N. K. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

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