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Official data from INPI

PROCESSO PARA A PRODUCAO DE UMA CAMADA FILTRANTE POROSA

Em AnáliseInvention Patent

Application data

Number

PI8004072

Type

Invention Patent

Filing

06/30/1979

Publication

-

Progress at the INPI

  1. Filing06/30/79
  2. Publication
  3. Examination02/08/83
  4. Allowance09/25/84
  5. Grant03/26/85
  6. Terminated05/17/88

The patent was granted on 03/26/1985 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HAVER & BOECKER

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Inventors

C. J. (pessoa física)

S. W. (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

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

02/08/1983

RPI 642

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