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Official data from INPI

APARELHO E PROCESSO DE ACIONAMENTO DE CORREIA DE CHAPA DE PRESSÃO.

ConcedidaInvention Patent

Application data

Number

PI8306647

Type

Invention Patent

Filing

12/02/1983

Publication

07/31/1984

Progress at the INPI

  1. Filing12/02/83
  2. Publication07/31/84
  3. Examination09/09/86
  4. Allowance06/28/88
  5. Grant01/10/89
  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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

L. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

449.961 · 12/15/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

Exigência - art. 36 da LPI

#6.1

01/12/1988

RPI 899

Solicitação de exame técnico

#4.1

09/09/1986

RPI 829

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

02/14/1984

RPI 695

Carta-patente expirada

#21.1

07/01/2008

RPI 1956

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