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Official data from INPI

MECANISMO DE MUDANÇA DE ENGRENAGEM

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004722

Type

Invention Patent

Filing

09/13/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/13/90
  2. Publication09/10/91
  3. Examination09/28/93
  4. Allowance05/31/94
  5. Grant12/27/94
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Agco Limited

GB

Massey-Ferguson Limited

GB

Massey-Ferguson Services N.V.

NL

See this company's full portfolio

Inventors

R. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8921541-2 · 09/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/09/2005

06/01/2010

RPI 2056

Alteração de nome deferida

#25.4

Alterado de: Massey-Ferguson Limited

07/04/2000

RPI 1539

Transferência deferida

#25.1

12/30/1997

RPI 1410

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/23/1994

RPI 1238

14.1

07/05/1994

RPI 1231

Deferimento

#9.1

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

09/28/1993

RPI 1191

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/26/1991

RPI 1060

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