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Official data from INPI

PROCESSO E APARELHO PARA TRATAR UM ARTIGO COM MATERIAL EM PARTICULAS E PRODUTO OBTIDO

Em AnáliseInvention Patent

Application data

Number

PI8006802

Type

Invention Patent

Filing

10/23/1979

Publication

-

Progress at the INPI

  1. Filing10/23/79
  2. Publication
  3. Examination06/07/83
  4. Allowance09/18/84
  5. Grant04/30/85
  6. Terminated05/17/88

The patent was granted on 04/30/1985 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PILKINGTON BROTHERS LTD

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Inventors

S. G. (pessoa física)

W. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

01/15/1985

RPI 743

Deferimento

#9.1

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

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