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Official data from INPI

EMBREAGEM DE MOLA BIDIRECIONAL.

ConcedidaInvention Patent

Application data

Number

PI8306478

Type

Invention Patent

Filing

03/11/1983

Publication

02/07/1984

Progress at the INPI

  1. Filing03/11/83
  2. Publication02/07/84
  3. Examination11/26/85
  4. Allowance12/29/87
  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

G. C. (pessoa física)

US

Inventors

N. [. (pessoa física)

R. [. (pessoa física)

W. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

10/29/1986

RPI 836

Solicitação de exame técnico

#4.1

11/26/1985

RPI 788

Notificação de entrada na fase nacional - PCT

#1.3

02/07/1984

RPI 694

Carta-patente expirada

#21.1

Patente extinta em 11/03/98

07/01/2008

RPI 1956

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