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Official data from INPI

EMBOLO COMPLACA DE FUNDO PARA MOTOR DE COMBUSTAO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI7902894

Type

Invention Patent

Filing

05/13/1978

Publication

-

Progress at the INPI

  1. Filing05/13/78
  2. Publication
  3. Examination10/13/81
  4. Allowance06/01/82
  5. Grant
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MAHLE GMBH

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.9

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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