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Official data from INPI

Processo para desoleamento de uma solução de lauril sulfato de sódio e aparelho para separação ou retificação ascendetemente orientado.

ConcedidaInvention Patent
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Application data

Number

PI8007550

Type

Invention Patent

Filing

11/19/1980

Publication

-
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Progress at the INPI

  1. Filing11/19/80
  2. Publication
  3. Examination09/20/83
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired12/26/95

The letters patent expired on 12/26/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Colgate-Palmolive Company

US

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Inventors

S. S. (pessoa física)

Technical data

IPC Classification

C11D 1/12

Priority claims

US

097,520 · 11/26/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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