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Official data from INPI

COMPOSIÇÃO LUBRIFICANTE, CONCENTRADO E MÉTODO PARA REDUZIR A PRESENÇA DE SULFETO DE HIDROGÊNIO LIVRE DE UM COMPOSTO CONTENDO ENXOFRE ATIVO

ArquivadaInvention PatentPCT · US1989003741

Application data

Number

PI8907073

Type

Invention Patent

Filing

08/29/1989

Publication

10/02/1990

PCT

US1989003741

Progress at the INPI

  1. Filing08/29/89
  2. Publication10/02/90
  3. Abandoned07/23/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/11/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

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Inventors

C. S. (pessoa física)

J. V. (pessoa física)

US

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.31

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

11/12/1996

RPI 1354

Solicitação de exame técnico

#4.1

07/23/1991

RPI 1077

Notificação de entrada na fase nacional - PCT

#1.3

10/02/1990

RPI 1035

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