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Official data from INPI

APERFEIÇOAMENTO EM COROA CREMALHEIRA E ANÉIS GUIAS DE ROLETES

ConcedidaInvention Patent

Application data

Number

PI8403487

Type

Invention Patent

Filing

07/10/1984

Publication

12/04/1984

Progress at the INPI

  1. Filing07/10/84
  2. Publication12/04/84
  3. Examination03/05/85
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Terminated06/18/91

The patent was granted on 08/25/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Yok Equipamentos S/A

PR, BR

Inventors

Y. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação antecipada

#3.2

12/04/1984

RPI 737

Pedido de patente depositado

#2.1

09/25/1984

RPI 727

Anuidade - prazo legal encerrado

#18.2

06/18/1991

RPI 1072

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