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Official data from INPI

SISTEMA DE TRATAMENTO DE AR.

Em AnáliseInvention PatentPCT · SE1987000595

Application data

Number

PI8707919

Type

Invention Patent

Filing

12/11/1987

Publication

10/31/1989

PCT

SE1987000595

Progress at the INPI

  1. Filing12/11/87
  2. Publication10/31/89
  3. Examination02/13/90
  4. Allowance10/06/92
  5. Grant05/25/93
  6. Terminated10/24/95

The patent was granted on 05/25/1993 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Astra-Vent AB.

SE

Inventors

A. L. (pessoa física)

SE

V. T. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8605475-6 · 12/19/1986

SE

8701916-2 · 05/11/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Anuidade - prazo legal encerrado

#18.2

10/24/1995

RPI 1299

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

02/13/1990

RPI 1006

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