Official data from INPI

PROCESSO PARA A PREPARACAO DE REVESTIMENTOS DE COMPOSICOES MARITIMAS ANTIVEGETATIVAS E PROCESSO PARA PROTECAO DE UMA SUPERFICIE MARITIMA CONTRA ACUMULACOES VEGETATIVAS E DE ORGANISMOS

ConcedidaInvention Patent

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Application data

Number

PI7600228

Type

Invention Patent

Filing

01/20/1975

Publication

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Progress at the INPI

Filing01/20/75
Publication
Examination
Allowance
Grant04/27/82
Expired07/27/93

The letters patent expired on 07/27/1993: 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: 04/27/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT PAINT CO

Inventors

M. A. (pessoa física)

Technical data

IPC Classification

C09D 5/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/27/1982

RPI 601

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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