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Official data from INPI

PROCESSO PARA CONTER MATERIAIS NA TERRA COM UMA BARREIRA CRIOGÊNICA E SISTEMA DE CONFINAMENTO POR BARREIRA CRIOGÊNICA

Arquivada/ExtintaInvention PatentPCT · US1989003626

Application data

Number

PI8907815

Type

Invention Patent

Filing

08/23/1989

Publication

08/13/1991

PCT

US1989003626

Progress at the INPI

  1. Filing08/23/89
  2. Publication08/13/91
  3. Examination11/24/92
  4. Allowance11/01/94
  5. Grant06/27/95
  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

RKK, Limited

US

Inventors

J. D. (pessoa física)

US

R. K. (pessoa física)

US

Technical data

Priority claims

US

281.493 · 12/08/1988

US

392.941 · 08/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/08/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

03/07/1995

RPI 1266

Deferimento

#9.1

11/01/1994

RPI 1248

Exigência - art. 36 da LPI

#6.1

03/29/1994

RPI 1217

Solicitação de exame técnico

#4.1

11/24/1992

RPI 1147

Notificação de entrada na fase nacional - PCT

#1.3

08/13/1991

RPI 1080

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