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Official data from INPI

PROCESSO E APARELHO PARA GERAR ENERGIA APROVEITÁVEL; REGENERADOR PARA FLUÍDO DE TRABALHO USADO DE COMPONENTES MÚLTIPLOS

ConcedidaInvention Patent

Application data

Number

PI8506147

Type

Invention Patent

Filing

12/09/1985

Publication

08/26/1986

Progress at the INPI

  1. Filing12/09/85
  2. Publication08/26/86
  3. Examination08/09/88
  4. Allowance05/02/89
  5. Grant10/24/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. K. (pessoa física)

US

Inventors

A. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

693,470 · 01/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

08/09/1988

RPI 929

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 09/12/2000

07/15/2008

RPI 1958

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