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Official data from INPI

APARELHO PARA SEPARAR LÍQUIDOS, PROCESSO PARA REDUZIR O DERRAMAMENTO DE LÍQUIDO DE UMA PARTE INFERIOR DE UMA ZONA DE SEPARAÇÃO E PROCESSO DE ALQUILAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000814

Type

Invention Patent

Filing

02/21/1990

Publication

02/05/1991

Progress at the INPI

  1. Filing02/21/90
  2. Publication02/05/91
  3. Examination02/24/93
  4. Allowance11/11/97
  5. Grant08/25/98
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ConocoPhillips Company

US

Phillips Petroleum Company

US

See this company's full portfolio

Inventors

K. H. (pessoa física)

US

Technical data

Priority claims

US

314.676 · 02/22/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/02/2010

01/08/2013

RPI 2192

Alteração de nome deferida

#25.4

Alterado de: Phillips Petroleum Company

08/31/2010

RPI 2069

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

11/19/1996

RPI 1355

Solicitação de exame técnico

#4.1

02/24/1993

RPI 1160

Publicação do pedido de patente

#3.1

02/05/1991

RPI 1053

Pedido de patente depositado

#2.1

06/19/1990

RPI 1023

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