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Official data from INPI

ENGRENAGEM DE DIREÇÃO,

ConcedidaInvention PatentPCT · EP1983000207

Application data

Number

PI8307697

Type

Invention Patent

Filing

08/03/1983

Publication

03/12/1985

PCT

EP1983000207

Progress at the INPI

  1. Filing08/03/83
  2. Publication03/12/85
  3. Examination10/29/85
  4. Allowance08/11/87
  5. Grant03/29/88
  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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Z. A. (pessoa física)

DE

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Inventors

D. E. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 32 38 740.7 · 10/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

15.9

10/29/1985

RPI 784

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1985

RPI 751

Carta-patente expirada

#21.1

Patente extinta em 03/08/98

07/01/2008

RPI 1956

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