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Official data from INPI

SEPARADOR CICLÔNICO

Em AnáliseInvention Patent

Application data

Number

PI8507311

Type

Invention Patent

Filing

07/23/1985

Publication

12/01/1987

Progress at the INPI

  1. Filing07/23/85
  2. Publication12/01/87
  3. Examination09/20/88
  4. Allowance10/15/91
  5. Grant06/30/92
  6. Terminated06/04/96

The patent was granted on 06/30/1992 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: 09/20/1988. 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

G. P. (pessoa física)

AU

Technical data

IPC Classification

Priority claims

AU

40909/85 · 04/04/1985

CA

472531 · 01/22/1985

FI

31754 · 01/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Notificação de entrada na fase nacional - PCT

#1.3

12/01/1987

RPI 893

Anuidade - prazo legal encerrado

#18.2

06/04/1996

RPI 1331

Concessão da patente

#16.1

06/30/1992

RPI 1126

Notificação para pagamento de retribuição

#13.1

02/18/1992

RPI 1107

Deferimento

#9.1

10/15/1991

RPI 1089

Exigência - art. 36 da LPI

#6.1

04/16/1991

RPI 1063

14.1

10/02/1990

RPI 1035

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