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Official data from INPI

Aerador natural.

ConcedidaInvention Patent

Application data

Number

PI8104909

Type

Invention Patent

Filing

07/30/1981

Publication

11/17/1981

Progress at the INPI

  1. Filing07/30/81
  2. Publication11/17/81
  3. Examination03/02/82
  4. Allowance08/13/85
  5. Grant03/25/86
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEPAR Desenvolvimento e Participações S/C

SP, BR

Induspress Construções, Indústria e Comércio Ltda

BR

Inventors

J. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Deferimento

#9.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

14.4

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

03/02/1982

RPI 593

Publicação antecipada

#3.2

11/17/1981

RPI 578

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

Pedido de licença compulsória

#20.1

11/13/1990

RPI 1041

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