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Official data from INPI

MÉTODO E APARELHO PARA PURIFICAR AR E ÀGUA

PublicadaInvention Patent

Application data

Number

PI8801778

Type

Invention Patent

Filing

04/11/1988

Publication

11/14/1989

Progress at the INPI

  1. Filing04/11/88
  2. Publication11/14/89
  3. Examination09/18/90
  4. Allowance08/02/94
  5. Grant04/25/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. Y. (pessoa física)

JP

Inventors

Y. Y. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

93791/1987 · 04/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/14/1989

RPI 995

Pedido de patente depositado

#2.1

08/23/1988

RPI 931

Carta-patente expirada

#21.1

Patente extinta em 11/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

11/29/1994

RPI 1252

Deferimento

#9.1

08/02/1994

RPI 1235

Exigência - art. 36 da LPI

#6.1

11/23/1993

RPI 1199

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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