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Official data from INPI

PROCESSO DE BENEFICIAMENTO DE ARGILA SUPER FINA, EM POLPA DE ALTA PORCENTAGEM DE SÓLIDOS, PELO USO DA CENTRIFUGAÇÃO.,

ConcedidaInvention Patent
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Application data

Number

PI8106389

Type

Invention Patent

Filing

10/05/1919

Publication

05/10/1983
View on INPI

Progress at the INPI

  1. Filing10/05/19
  2. Publication05/10/83
  3. Examination08/23/83
  4. Allowance06/11/85
  5. Grant12/31/85
  6. Terminated03/19/96

The patent was granted on 12/31/1985 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ceramica Sào Caetano S/A.

SP, BR

C. A. (pessoa física)

SP, BR

Inventors

M. G. (pessoa física)

P. P. (pessoa física)

Technical data

IPC Classification

B28C 1/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

09/24/1985

RPI 779

Deferimento

#9.1

06/11/1985

RPI 764

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

05/10/1983

RPI 655

Pedido de patente depositado

#2.1

11/24/1981

RPI 579

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

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