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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104720

Type

Invention Patent

Filing

07/22/1981

Publication

03/01/1983

Progress at the INPI

  1. Filing07/22/81
  2. Publication03/01/83
  3. Examination08/09/83
  4. Allowance02/14/84
  5. Grant09/25/84
  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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kone-Industria de Maquinas Ltda.

SP, BR

Inventors

C. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Publicação do pedido de patente

#3.1

03/01/1983

RPI 645

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

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