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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8100663

Type

Invention Patent

Filing

02/04/1981

Publication

-

Progress at the INPI

  1. Filing02/04/81
  2. Publication
  3. Examination04/13/82
  4. Allowance10/23/84
  5. Grant04/30/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 08/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TRW Repa GMBH.

DE

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Inventors

W. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

08/23/1988

RPI 931

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

03/05/1985

RPI 750

Deferimento

#9.1

10/23/1984

RPI 731

Conhecimento de parecer técnico

#7.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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