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Official data from INPI

FERRAMENTA E PROCESSO PARA EXPANSÃO E ESTRIAMENTO DE TUBOS

ConcedidaInvention Patent

Application data

Number

PI8305215

Type

Invention Patent

Filing

09/23/1983

Publication

05/02/1984

Progress at the INPI

  1. Filing09/23/83
  2. Publication05/02/84
  3. Examination10/09/84
  4. Allowance05/10/88
  5. Grant12/06/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

427,408 · 09/29/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/06/1988

RPI 946

Republicação - classificação IPC

#15.11

05/31/1988

RPI 919

Deferimento

#9.1

05/10/1988

RPI 916

Conhecimento de parecer técnico

#7.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

05/13/1986

RPI 812

Exigência - art. 36 da LPI

#6.1

08/13/1985

RPI 773

Solicitação de exame técnico

#4.1

10/09/1984

RPI 729

Publicação do pedido de patente

#3.1

05/02/1984

RPI 706

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

Carta-patente expirada

#21.1

Patente extinta em 23/09/98

07/01/2008

RPI 1956

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