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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8104850

Type

Invention Patent

Filing

07/28/1981

Publication

03/08/1983

Progress at the INPI

  1. Filing07/28/81
  2. Publication03/08/83
  3. Examination06/07/83
  4. Allowance01/03/84
  5. Grant07/31/84
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Maquinas Ikemori Ltda.

SP, BR

Inventors

I. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

12/26/1984

RPI 740

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

Publicação do pedido de patente

#3.1

03/08/1983

RPI 646

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

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