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Official data from INPI

UMA ESTRUTURA FIBROSA CARBONÁCEA FLUTUANTE REVESTIDA COM UM MATERIAL HIDROFÓBICO, INSOLÚVEL EM ÁGUA

IndeferidaInvention PatentPCT · US1988003656

Application data

Number

PI8807525

Type

Invention Patent

Filing

10/18/1988

Publication

06/12/1990

PCT

US1988003656

Progress at the INPI

Under appeal
  1. Filing10/18/88
  2. Publication06/12/90
  3. Examination10/29/91
  4. Refused01/23/96
  5. Grant
  6. In force

The application was refused by the INPI on 01/23/1996. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/23/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

M. J. (pessoa física)

S. V. (pessoa física)

Technical data

IPC Classification

Priority claims

US

164.605 · 03/07/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

01/23/1996

RPI 1312

Indeferimento

#9.2

01/23/1996

RPI 1312

Conhecimento de parecer técnico

#7.1

04/25/1995

RPI 1273

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

Notificação de entrada na fase nacional - PCT

#1.3

06/12/1990

RPI 1022

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