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Official data from INPI

RÉGUA PARA SELEÇÃO DE MATERIAL PADRONIZADO

PublicadaInvention Patent

Application data

Number

PI8704857

Type

Invention Patent

Filing

09/22/1987

Publication

03/21/1989

Progress at the INPI

  1. Filing09/22/87
  2. Publication03/21/89
  3. Examination11/20/90
  4. Allowance03/07/95
  5. Grant10/31/95
  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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

See this company's full portfolio

Inventors

H. F. (pessoa física)

BR

J. F. (pessoa física)

BR

P. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/21/1989

RPI 961

Pedido de patente depositado

#2.1

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 22/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/31/1995

RPI 1300

Notificação para pagamento de retribuição

#13.1

08/08/1995

RPI 1288

Deferimento

#9.1

03/07/1995

RPI 1266

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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