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Official data from INPI

PROCESSO DE ADSORÇÃO POR TROCA DE PRESSÃO

ConcedidaInvention Patent

Application data

Number

PI8207062

Type

Invention Patent

Filing

12/06/1982

Publication

10/11/1983

Progress at the INPI

  1. Filing12/06/82
  2. Publication10/11/83
  3. Examination01/22/85
  4. Allowance11/22/88
  5. Grant08/29/89
  6. Terminated07/18/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

R. C. (pessoa física)

US

T. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

329.502 · 12/10/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Deferimento

#9.1

11/22/1988

RPI 944

Exigência - art. 36 da LPI

#6.1

04/05/1988

RPI 911

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Solicitação de exame técnico

#4.1

01/22/1985

RPI 744

Publicação do pedido de patente

#3.1

10/11/1983

RPI 677

Pedido de patente depositado

#2.1

02/01/1983

RPI 641

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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