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Official data from INPI

PROCESSO E APARELHO PARA CONTROLAR UMA VÁLVULA DE EXPANSÃO DE REFRIGERANTE EMUM SISTEMA DE REFRIGERAÇÃO

ConcedidaInvention Patent

Application data

Number

PI8406428

Type

Invention Patent

Filing

12/14/1984

Publication

10/15/1985

Progress at the INPI

  1. Filing12/14/84
  2. Publication10/15/85
  3. Examination05/20/86
  4. Allowance09/08/87
  5. Grant06/28/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

See this company's full portfolio

Inventors

R. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

562,896 · 12/19/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

03/12/1985

RPI 751

Carta-patente expirada

#21.1

Patente extinta em 14/12/99

07/08/2008

RPI 1957

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