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Official data from INPI

SEM TITULO

Concessão AnuladaInvention Patent

Application data

Number

PI8104514

Type

Invention Patent

Filing

07/14/1981

Publication

03/30/1982

Progress at the INPI

  1. Filing07/14/81
  2. Publication03/30/82
  3. Examination05/29/84
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. O. (pessoa física)

NL

Inventors

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Solicitação de exame técnico

#4.1

05/29/1984

RPI 710

Publicação do pedido de patente

#3.1

03/30/1982

RPI 597

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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