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Official data from INPI

PROCESSO E APARELHO PARA REDUZIR A PRESSÃO EM UMA MISTURA LÍQUIDA

Arquivada/ExtintaInvention PatentPCT · SE1987000535

Application data

Number

PI8707896

Type

Invention Patent

Filing

11/16/1987

Publication

10/31/1989

PCT

SE1987000535

Progress at the INPI

  1. Filing11/16/87
  2. Publication10/31/89
  3. Examination02/13/90
  4. Allowance09/24/91
  5. Grant06/30/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfa-Laval Separation AB

SE

See this company's full portfolio

Inventors

K. K. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8605117-4 · 11/28/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Carta-patente expirada

#21.1

Patente extinta em 16/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/30/1992

RPI 1126

Notificação para pagamento de retribuição

#13.1

01/28/1992

RPI 1104

Deferimento

#9.1

09/24/1991

RPI 1086

Solicitação de exame técnico

#4.1

02/13/1990

RPI 1006

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