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Official data from INPI

APARELHO PARA A SEPARAÇÃO DE POLUENTES DE UMA CORRENTE GASOSA

ArquivadaInvention Patent
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Application data

Number

PI8306670

Type

Invention Patent

Filing

11/30/1983

Publication

07/09/1985
View on INPI

Progress at the INPI

  1. Filing11/30/83
  2. Publication07/09/85
  3. Examination02/18/86
  4. Allowance10/30/90
  5. Grant05/28/91
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S/A Agro Industrial Eldorado, firma brasileira, comercial

SP, BR

Inventors

V. R. (pessoa física)

BR

Technical data

IPC Classification

B01D 53/34B03B 9/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.3

10/31/1989

RPI 993

Exigência - art. 36 da LPI

#6.1

12/13/1988

RPI 947

Exigência - art. 36 da LPI

#6.1

07/05/1988

RPI 924

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

07/09/1985

RPI 768

14.7

09/04/1984

RPI 724

Pedido de patente depositado

#2.1

02/14/1984

RPI 695

Carta-patente expirada

#21.1

Patente extinta em 30/11/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

02/13/1991

RPI 1054

Deferimento

#9.1

10/30/1990

RPI 1039

102

06/26/1990

RPI 1024

Pedido de recurso

#12.3

04/10/1990

RPI 1013

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