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Official data from INPI

DISPOSITIVO DE EQUILÍBRIO DE PISTÃO DE VAPOR DE TRAÇÃO, SISTEMA DE MOTOR DE TURBINA A GÁS E PROCESSO PARA A OPERAÇÃO DE UM MOTOR DE TURBINA

PublicadaInvention Patent

Application data

Number

PI8800319

Type

Invention Patent

Filing

01/27/1988

Publication

09/13/1988

Progress at the INPI

  1. Filing01/27/88
  2. Publication09/13/88
  3. Examination12/18/90
  4. Allowance03/24/92
  5. Grant11/24/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

W. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

007.878 · 01/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/13/1988

RPI 934

Pedido de patente depositado

#2.1

04/26/1988

RPI 914

Carta-patente expirada

#21.1

Patente extinta em 27/01/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

09/01/1992

RPI 1135

Deferimento

#9.1

03/24/1992

RPI 1112

Solicitação de exame técnico

#4.1

12/18/1990

RPI 1046

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