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Official data from INPI

PROCESSO E DISPOSITIVO PARA A PURIFICACAO DE AR POLUIDO COM SUBSTANCIAS NOCIVAS

ConcedidaInvention Patent

Application data

Number

PI8108835

Type

Invention Patent

Filing

10/17/1980

Publication

09/21/1982

Progress at the INPI

  1. Filing10/17/80
  2. Publication09/21/82
  3. Examination06/05/84
  4. Allowance04/22/87
  5. Grant09/29/87
  6. Terminated02/04/92

The patent was granted on 09/29/1987 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOELTER H [DE]

Inventors

D. [. (pessoa física)

G. [. (pessoa física)

H. [. (pessoa física)

I. [. (pessoa física)

Pessoa física

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

04/22/1987

RPI 861

Republicação - classificação IPC

#15.11

04/08/1986

RPI 807

Republicação - classificação IPC

#15.11

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

01/14/1986

RPI 795

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Notificação de entrada na fase nacional - PCT

#1.3

09/21/1982

RPI 622

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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