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Official data from INPI

CONECTOR TUBULAR

PublicadaInvention Patent

Application data

Number

PI8704793

Type

Invention Patent

Filing

09/17/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing09/17/87
  2. Publication07/19/88
  3. Examination09/25/90
  4. Allowance07/02/91
  5. Grant03/31/92
  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: 07/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cameron Iron Works, Inc.

US

Inventors

G. G. (pessoa física)

US

P. J. (pessoa física)

US

Technical data

Priority claims

US

946.041 · 12/24/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

12/22/1987

RPI 896

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era F21B 17/02.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 17/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/29/1991

RPI 1091

Deferimento

#9.1

07/02/1991

RPI 1074

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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