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Official data from INPI

SEPARADOR CICLÔNICO, E, PROCESSO DE OPERAÇÃO DO MESMO

Em ExigênciaInvention Patent

Application data

Number

PI8307470

Type

Invention Patent

Filing

02/28/1983

Publication

07/17/1984

Progress at the INPI

  1. Filing02/28/83
  2. Publication07/17/84
  3. Examination11/06/84
  4. Allowance04/16/91
  5. Grant10/29/91
  6. Terminated09/05/95

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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Conoco Specialty Products Inc

US

See this company's full portfolio

Inventors

N. C. (pessoa física)

AU

Technical data

Priority claims

AU

PF 2973/82 · 03/04/1982

AU

PF3061/82 · 03/11/1982

AU

PF4016/82 · 05/14/1982

AU

PF4017/82 · 05/14/1982

AU

PF5314/82 · 08/10/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/15/1989

RPI 982

Solicitação de exame técnico

#4.1

11/06/1984

RPI 733

Notificação de entrada na fase nacional - PCT

#1.3

07/17/1984

RPI 717

Anuidade - prazo legal encerrado

#18.2

09/05/1995

RPI 1292

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

07/30/1991

RPI 1078

Deferimento

#9.1

04/16/1991

RPI 1063

14.1

09/25/1990

RPI 1034

Exigência - art. 36 da LPI

#6.1

07/24/1990

RPI 1025

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