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Official data from INPI

SISTEMA DE CANALIZAÇÃO SECUNDARIAMENTE ENCERRADO, E, SISTEMA DE DISTRIBUIÇÃO DE FLUÍDO SECUNDARIAMENTE ENCERRADO

Arquivada/ExtintaInvention PatentPCT · US1989005656

Application data

Number

PI8907263

Type

Invention Patent

Filing

12/22/1989

Publication

03/12/1991

PCT

US1989005656

Progress at the INPI

  1. Filing12/22/89
  2. Publication03/12/91
  3. Examination04/20/93
  4. Allowance08/23/94
  5. Grant04/25/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

M. W. (pessoa física)

US

T. W. (pessoa física)

US

Total Containment, Inc

US

See this company's full portfolio

Inventors

M. W. (pessoa física)

US

T. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/288,131 · 12/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

12/20/1994

RPI 1255

Deferimento

#9.1

08/23/1994

RPI 1238

Exigência - art. 36 da LPI

#6.1

11/30/1993

RPI 1200

14.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

04/20/1993

RPI 1168

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1991

RPI 1058

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