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Official data from INPI

APERFEIÇOAMENTOS INTRODUZIDOS NA FORMAÇÃO DE BLOCOS DE NÚCLEO OU DE MACHO DE FUNDIÇÃO

PublicadaInvention Patent

Application data

Number

PI8805466

Type

Invention Patent

Filing

10/21/1988

Publication

07/04/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication07/04/89
  3. Examination07/02/91
  4. Allowance01/03/95
  5. Grant07/25/95
  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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. E. (pessoa física)

ES

Inventors

A. E. (pessoa física)

ES

Technical data

IPC Classification

Priority claims

ES

8703026 · 10/22/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/04/1989

RPI 976

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Carta-patente expirada

#21.1

Patente extinta em 21/10/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/23/1995

RPI 1277

Deferimento

#9.1

01/03/1995

RPI 1257

Solicitação de exame técnico

#4.1

07/02/1991

RPI 1074

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