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Official data from INPI

UM SISTEMA DE MOTOR DE ACIONAMENTO DE VELOCIDADE VARIÁVEL COM CONTROLE INVERSOR.

ConcedidaInvention Patent

Application data

Number

PI8404961

Type

Invention Patent

Filing

10/02/1984

Publication

08/20/1985

Progress at the INPI

  1. Filing10/02/84
  2. Publication08/20/85
  3. Examination12/10/85
  4. Allowance11/10/87
  5. Grant06/28/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

See this company's full portfolio

Inventors

T. Z. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

542.640 · 10/17/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Exigência - art. 36 da LPI

#6.1

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

12/10/1985

RPI 790

Publicação do pedido de patente

#3.1

08/20/1985

RPI 774

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Carta-patente expirada

#21.1

Patente extinta em 02/10/99

07/08/2008

RPI 1957

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