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Official data from INPI

DENTES ACOPLADORES EM UMA ENGRENAGEM CORREDIÇA.

ConcedidaInvention Patent

Application data

Number

PI8101973

Type

Invention Patent

Filing

04/01/1981

Publication

10/06/1981

Progress at the INPI

  1. Filing04/01/81
  2. Publication10/06/81
  3. Examination10/04/83
  4. Allowance04/03/84
  5. Grant10/30/84
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Z. A. (pessoa física)

DE

Inventors

W. P. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 12 778.7 · 04/02/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/03/1984

RPI 702

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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