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Official data from INPI

ESTRUTURA DE TUBULAÇÃO E PROCESSO DE FABRICAÇÃO DE TUBULAÇÀO

Em AnáliseInvention Patent

Application data

Number

PI8600904

Type

Invention Patent

Filing

03/03/1986

Publication

11/11/1986

Progress at the INPI

  1. Filing03/03/86
  2. Publication11/11/86
  3. Examination09/27/88
  4. Allowance08/08/89
  5. Grant03/20/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. R. (pessoa física)

US

Roberts Group Holdings, LLC

US

Inventors

J. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

707.082 · 03/01/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/05/1989

RPI 998

Deferimento

#9.1

08/08/1989

RPI 981

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

11/11/1986

RPI 838

Pedido de patente depositado

#2.1

08/26/1986

RPI 827

Carta-patente expirada

#21.1

Patente extinta em 03/03/2001

07/22/2008

RPI 1959

Transferência deferida

#25.1

Transferido de: James C. Roberts.

08/24/1999

RPI 1494

Concessão da patente

#16.1

03/20/1990

RPI 1010

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