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Official data from INPI

APARELHO PARA O TRATAMENTO DE ÁGUA NÃO CLARIFICADA

Em AnáliseInvention Patent

Application data

Number

PI8506916

Type

Invention Patent

Filing

09/03/1985

Publication

12/09/1986

Progress at the INPI

  1. Filing09/03/85
  2. Publication12/09/86
  3. Examination04/19/88
  4. Allowance12/04/90
  5. Grant07/30/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lenox Institute For Research, Inc sem fins lucrativos

US

Inventors

M. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

646.789 · 09/04/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/19/1988

RPI 913

Notificação de entrada na fase nacional - PCT

#1.3

12/09/1986

RPI 842

Carta-patente expirada

#21.1

Patente extinta em 03/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

03/19/1991

RPI 1059

Deferimento

#9.1

12/04/1990

RPI 1044

Conhecimento de parecer técnico

#7.1

03/13/1990

RPI 1009

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