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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8104849

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. Allowance12/20/83
  5. Grant07/31/84
  6. Expired11/12/96

The letters patent expired on 11/12/1996: 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. L. (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

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

3.4

04/26/1983

RPI 653

Publicação do pedido de patente

#3.1

03/08/1983

RPI 646

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

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