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Official data from INPI

APARELHO E PROCESSO APERFEIÇOADOS PARA RECICLAGEM DE ENERGIA EM TROCA DE CALOR A CONTRA-CORRENTE E EM DESTILAÇÃO

ConcedidaInvention Patent

Application data

Number

PI8208090

Type

Invention Patent

Filing

09/02/1982

Publication

08/14/1984

Progress at the INPI

  1. Filing09/02/82
  2. Publication08/14/84
  3. Examination08/19/86
  4. Allowance05/02/89
  5. Grant10/24/89
  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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Superstill Technology, Inc.

US

Inventors

S. S. (pessoa física)

US

Technical data

IPC Classification

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

Exigência - art. 36 da LPI

#6.1

02/17/1988

RPI 904

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

8.1

05/13/1986

RPI 812

Notificação de entrada na fase nacional - PCT

#1.3

08/14/1984

RPI 721

Carta-patente expirada

#21.1

Patente extinta em 02/09/97

07/01/2008

RPI 1956

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