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Official data from INPI

PROCESSO DE SEPARAÇÃO POR ADSORÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8202528

Type

Invention Patent

Filing

04/30/1982

Publication

04/19/1983

Progress at the INPI

  1. Filing04/30/82
  2. Publication04/19/83
  3. Examination07/24/84
  4. Allowance03/01/88
  5. Grant09/27/88
  6. Terminated11/29/94

The patent was granted on 09/27/1988 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

D. G. (pessoa física)

US

J. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

259.377 · 05/01/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Republicação - classificação IPC

#15.11

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Anuidade - prazo legal encerrado

#18.2

11/29/1994

RPI 1252

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