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Official data from INPI

Transmissão de mudança de engrenagem e meios retentores de engrenagem.

ConcedidaInvention Patent

Application data

Number

PI8301616

Type

Invention Patent

Filing

03/24/1983

Publication

12/06/1983

Progress at the INPI

  1. Filing03/24/83
  2. Publication12/06/83
  3. Examination04/15/86
  4. Allowance06/23/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

O. J. (pessoa física)

T. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

361.938 · 03/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

14.7

03/15/1988

RPI 908

Notificação para pagamento de retribuição

#13.1

10/20/1987

RPI 887

Deferimento

#9.1

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

04/15/1986

RPI 808

Publicação do pedido de patente

#3.1

12/06/1983

RPI 685

Pedido de patente depositado

#2.1

05/17/1983

RPI 656

Carta-patente expirada

#21.1

Patente extinta em 24/03/98

07/01/2008

RPI 1956

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