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Official data from INPI

PRODUÇÃO DE BISFENÓIS GRANULARES

IndeferidaInvention PatentPCT · US1988000113

Application data

Number

PI8807323

Type

Invention Patent

Filing

01/19/1988

Publication

03/13/1990

PCT

US1988000113

Progress at the INPI

Under appeal
  1. Filing01/19/88
  2. Publication03/13/90
  3. Examination08/07/90
  4. Refused08/16/94
  5. Grant
  6. In force

The application was refused by the INPI on 08/16/1994. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/16/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

M. T. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

005.504 · 01/20/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

08/16/1994

RPI 1237

Conhecimento de parecer técnico

#7.1

11/16/1993

RPI 1198

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

Notificação de entrada na fase nacional - PCT

#1.3

03/13/1990

RPI 1009

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