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Official data from INPI

TURBINA A VAPOR SUSPENSA

ConcedidaInvention Patent

Application data

Number

PI8401707

Type

Invention Patent

Filing

04/13/1983

Publication

11/20/1984

Progress at the INPI

  1. Filing04/13/83
  2. Publication11/20/84
  3. Examination12/16/86
  4. Allowance06/07/88
  5. Grant01/10/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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

MC GRAW EDISON CO [US]

See this company's full portfolio

Inventors

A. A. (pessoa física)

L. K. (pessoa física)

T. H. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

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

10/04/1988

RPI 937

Deferimento

#9.1

06/07/1988

RPI 920

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

12/16/1986

RPI 843

14.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Carta-patente expirada

#21.1

Patente extinta em 12/04/99

08/19/2008

RPI 1963

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