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Official data from INPI

EMBREAGEM PNEUMATICA COM CAMARA DE AR COMPRIMIDO

ConcedidaInvention Patent

Application data

Number

PI7802869

Type

Invention Patent

Filing

05/05/1978

Publication

-

Progress at the INPI

  1. Filing05/05/78
  2. Publication
  3. Examination
  4. Allowance12/06/83
  5. Grant05/29/84
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 05/29/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNITEC IND METALURG LTD

Inventors

S. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/27/1984

RPI 701

Deferimento

#9.1

12/06/1983

RPI 685

14.7

08/02/1983

RPI 667

14.4

07/26/1983

RPI 666

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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