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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8101420

Type

Invention Patent

Filing

03/11/1981

Publication

05/04/1982

Progress at the INPI

  1. Filing03/11/81
  2. Publication05/04/82
  3. Examination07/13/82
  4. Allowance07/09/85
  5. Grant08/26/86
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Itautec Informática S/A - Grupo Itautec

SP, BR

Inventors

D. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

14.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Publicação antecipada

#3.2

05/04/1982

RPI 602

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

20.4

07/09/1991

RPI 1075

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