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Official data from INPI

PROCESSO PARA REDUCAO DA VISCOSIDADE DE MINERIOS DE ARGILA DE CAOLIM BRUTO;E PROCESSO PARA A REFINACAO DE MINERIOS DE ARGILA DE CAOLIM BRUTO

Em AnáliseInvention Patent

Application data

Number

PI7702791

Type

Invention Patent

Filing

05/02/1977

Publication

-

Progress at the INPI

  1. Filing05/02/77
  2. Publication
  3. Examination
  4. Allowance03/16/82
  5. Grant
  6. Terminated08/20/85

The patent was granted 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: 08/20/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HUBER CORP J M

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/20/1985

RPI 774

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

Notificação para pagamento de retribuição

#13.1

07/06/1982

RPI 611

Deferimento

#9.1

03/16/1982

RPI 595

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