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Official data from INPI

PROCESSO E DISPOSITIVO PARA A PURIFICAÇÃO DE AR DE DESCARGA

Em AnáliseInvention Patent

Application data

Number

PI8507302

Type

Invention Patent

Filing

12/12/1985

Publication

11/03/1987

Progress at the INPI

  1. Filing12/12/85
  2. Publication11/03/87
  3. Examination08/16/88
  4. Allowance04/02/91
  5. Grant10/29/91
  6. Terminated08/15/95

The patent was granted on 10/29/1991 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Menzolit-Werke Albert Schmidt GmbH & Co. Kg.

DE

Inventors

G. H. (pessoa física)

DE

R. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 47 274.6 · 12/22/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/16/1988

RPI 930

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Anuidade - prazo legal encerrado

#18.2

08/15/1995

RPI 1289

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

07/16/1991

RPI 1076

Deferimento

#9.1

04/02/1991

RPI 1061

Exigência - art. 36 da LPI

#6.1

10/30/1990

RPI 1039

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