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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8101994

Type

Invention Patent

Filing

04/02/1981

Publication

02/02/1982

Progress at the INPI

  1. Filing04/02/81
  2. Publication02/02/82
  3. Examination04/13/82
  4. Allowance06/11/85
  5. Grant12/31/85
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alta Tecnologia Indústria Eletrônica Ltda.

RJ, BR

Inventors

B. D. (pessoa física)

B. S. (pessoa física)

D. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

03/29/1988

RPI 910

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

09/24/1985

RPI 779

Deferimento

#9.1

06/11/1985

RPI 764

8.1

02/26/1985

RPI 749

Exigência - art. 36 da LPI

#6.1

08/14/1984

RPI 721

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

Publicação antecipada

#3.2

02/02/1982

RPI 589

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

14.10

10/02/1990

RPI 1035

14.4

08/14/1990

RPI 1028

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