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Official data from INPI

PROCESSO E APARELHO DE FRACIONAMENTO DE GAS,PARA REDUZIR A CONCENTRACAO DE UM OU MAIS PRIMEIROS GASES NUMA MISTURA DOS MESMOS COM UM SEGUNDO GAS

Em AnáliseInvention Patent

Application data

Number

PI7905588

Type

Invention Patent

Filing

08/31/1978

Publication

-

Progress at the INPI

  1. Filing08/31/78
  2. Publication
  3. Examination
  4. Allowance08/23/83
  5. Grant02/28/84
  6. Terminated05/17/88

The patent was granted on 02/28/1984 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

PALL CORP

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Inventors

P. C. (pessoa física)

V. M. (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

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

12/13/1983

RPI 686

Deferimento

#9.1

08/23/1983

RPI 670

Exigência - art. 36 da LPI

#6.1

06/15/1982

RPI 608

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