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Official data from INPI

PROCESSO DE OBTENÇÃO DE UM FLUÍDO FUNCIONAL A BASE DE ÁGUA

Em AnáliseInvention PatentPCT · US1986001542

Application data

Number

PI8606842

Type

Invention Patent

Filing

07/25/1986

Publication

11/03/1987

PCT

US1986001542

Progress at the INPI

  1. Filing07/25/86
  2. Publication11/03/87
  3. Examination04/25/89
  4. Allowance06/20/95
  5. Grant02/27/96
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

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Inventors

J. F. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

760,185 · 07/29/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/25/1989

RPI 966

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Carta-patente expirada

#21.1

Patente extinta em 25/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/27/1996

RPI 1317

Notificação para pagamento de retribuição

#13.1

10/31/1995

RPI 1300

Deferimento

#9.1

06/20/1995

RPI 1281

Exigência - art. 36 da LPI

#6.1

04/27/1993

RPI 1169

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