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Official data from INPI

DISPOSITIVO DE FECHAMENTO REMOVÍVEL

Em AnáliseInvention Patent

Application data

Number

PI8801682

Type

Invention Patent

Filing

04/08/1988

Publication

01/17/1989

Progress at the INPI

  1. Filing04/08/88
  2. Publication01/17/89
  3. Examination05/30/89
  4. Allowance06/30/92
  5. Grant04/27/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

US

McDermott International,Inc.,

US

Inventors

D. C. (pessoa física)

US

J. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

072.827 · 07/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/30/1989

RPI 971

Publicação do pedido de patente

#3.1

01/17/1989

RPI 952

Pedido de patente depositado

#2.1

08/16/1988

RPI 930

Carta-patente expirada

#21.1

Patente extinta em 08/04/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

01/21/1998

RPI 1413

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

11/17/1992

RPI 1146

Deferimento

#9.1

06/30/1992

RPI 1126

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