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Official data from INPI

PROCESSO PARA PURIFICAÇÃO DE GASES DE FUMAÇAS DE INSTALAÇÕES DE AQUECIMENTO E INSTALAÇÃO DE PURIFICAÇÃO PARA CONDUZIR O PROCESSO.

ConcedidaInvention Patent
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Application data

Number

PI8203741

Type

Invention Patent

Filing

06/25/1982

Publication

01/31/1984
View on INPI

Progress at the INPI

  1. Filing06/25/82
  2. Publication01/31/84
  3. Examination05/13/86
  4. Allowance02/08/89
  5. Grant11/28/89
  6. Terminated02/11/92

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Desco K/S

DK

Inventors

F. A. (pessoa física)

DK

Technical data

IPC Classification

B01D 47/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/19/1989

RPI 987

9.1.3

05/23/1989

RPI 970

Deferimento

#9.1

02/08/1989

RPI 955

Conhecimento de parecer técnico

#7.1

07/05/1988

RPI 924

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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