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Official data from INPI

CONJUNTO DE CONTROLE DE MUDANÇA PARA TRANSMISSÃO

PublicadaInvention Patent

Application data

Number

PI8902014

Type

Invention Patent

Filing

04/28/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/28/89
  2. Publication12/05/89
  3. Examination08/14/90
  4. Allowance03/24/92
  5. Grant02/24/93
  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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

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Inventors

B. I. (pessoa física)

US

F. A. (pessoa física)

US

H. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

189,855 · 05/03/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/13/1989

RPI 973

Carta-patente expirada

#21.1

Patente extinta em 28/04/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

02/24/1993

RPI 1160

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

08/14/1990

RPI 1028

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