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Official data from INPI

VEDAÇÃO FRONTAL MECÂNICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001874

Type

Invention Patent

Filing

04/23/1990

Publication

06/18/1991

Progress at the INPI

  1. Filing04/23/90
  2. Publication06/18/91
  3. Examination07/27/93
  4. Allowance07/26/94
  5. Grant03/01/95
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

John Crane Uk Limited

GB

See this company's full portfolio

Inventors

C. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8909289.4 · 04/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/04/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

03/01/1995

RPI 1265

Notificação para pagamento de retribuição

#13.1

11/22/1994

RPI 1251

Deferimento

#9.1

07/26/1994

RPI 1234

Exigência - art. 36 da LPI

#6.1

04/05/1994

RPI 1218

Solicitação de exame técnico

#4.1

07/27/1993

RPI 1182

Publicação do pedido de patente

#3.1

06/18/1991

RPI 1072

Pedido de patente depositado

#2.1

08/21/1990

RPI 1029

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