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Official data from INPI

VÁLVULA TERMICAMENTE COMANDADA

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904655

Type

Invention Patent

Filing

09/15/1989

Publication

04/24/1990

Progress at the INPI

  1. Filing09/15/89
  2. Publication04/24/90
  3. Examination02/13/91
  4. Allowance10/10/95
  5. Grant07/30/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. A. (pessoa física)

DE

Inventors

H. K. (pessoa física)

DE

W. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 31 474.6 · 09/16/1988

DE

P 39 25 032.6 · 07/28/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/09/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

07/30/1996

RPI 1339

Deferimento

#9.1

10/10/1995

RPI 1297

102

05/16/1995

RPI 1276

Pedido de recurso

#12.3

09/27/1994

RPI 1243

11.3

06/07/1994

RPI 1227

Exigência - art. 36 da LPI

#6.1

10/26/1993

RPI 1195

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

Publicação do pedido de patente

#3.1

04/24/1990

RPI 1015

Pedido de patente depositado

#2.1

01/02/1990

RPI 1000

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