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Official data from INPI

PROCESSO DE FORJAMENTO DE PRECISÃO

Em AnáliseInvention Patent

Application data

Number

PI8201057

Type

Invention Patent

Filing

02/25/1982

Publication

01/11/1983

Progress at the INPI

  1. Filing02/25/82
  2. Publication01/11/83
  3. Examination02/05/85
  4. Allowance01/10/89
  5. Grant08/29/89
  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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

See this company's full portfolio

Inventors

A. S. (pessoa física)

US

J. R. (pessoa física)

S. C. (pessoa física)

Technical data

IPC Classification

Priority claims

US

238.255 · 02/25/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.7

11/14/1989

RPI 995

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Conhecimento de parecer técnico

#7.1

08/23/1988

RPI 931

6.2

07/09/1985

RPI 768

Solicitação de exame técnico

#4.1

02/05/1985

RPI 746

Publicação do pedido de patente

#3.1

01/11/1983

RPI 638

Pedido de patente depositado

#2.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

Patente extinta em 25/02/97

07/01/2008

RPI 1956

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