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Official data from INPI

APERFEICOAMENTOS EM MECANISMO PARA DESENGATE DE ENGRENAGENS

ConcedidaInvention Patent

Application data

Number

PI7707708

Type

Invention Patent

Filing

11/18/1977

Publication

-

Progress at the INPI

  1. Filing11/18/77
  2. Publication
  3. Examination
  4. Allowance08/16/83
  5. Grant03/27/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

Inventors

R. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/06/1983

RPI 685

Deferimento

#9.1

08/16/1983

RPI 669

8.1

01/18/1983

RPI 639

8.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

02/16/1982

RPI 591

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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