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Official data from INPI

MÉTODO DE LAVAGEM DE LOUÇA UTILIZANDO AUXILIARES SÓLIDOS DE ENXAGUADURA.

Em AnáliseInvention Patent

Application data

Number

PI8504818

Type

Invention Patent

Filing

09/30/1985

Publication

07/22/1986

Progress at the INPI

  1. Filing09/30/85
  2. Publication07/22/86
  3. Examination06/21/88
  4. Allowance08/04/92
  5. Grant03/30/93
  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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ecolab Inc

US

See this company's full portfolio

Inventors

E. S. (pessoa física)

US

S. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

06/671.673 · 11/15/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/21/1988

RPI 922

14.4

11/17/1987

RPI 891

14.7

11/17/1987

RPI 891

Publicação do pedido de patente

#3.1

07/22/1986

RPI 822

Pedido de patente depositado

#2.1

12/10/1985

RPI 790

Carta-patente expirada

#21.1

Patente extinta em 30/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

01/12/1993

RPI 1154

Deferimento

#9.1

08/04/1992

RPI 1131

Exigência - art. 36 da LPI

#6.1

06/11/1991

RPI 1071

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