Official data from INPI

PROCESSO PARA A PREPARACAO DE ACIDO QUADRATICO

Em AnáliseInvention Patent

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Application data

Number

PI7703445

Type

Invention Patent

Filing

05/28/1976

Publication

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Progress at the INPI

Filing05/28/76
Publication
Examination
Allowance01/26/82
Grant
Terminated08/20/85

The patent was granted and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/20/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HUELS CHEMISCHE WERKE AG

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/20/1985

RPI 774

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

Notificação para pagamento de retribuição

#13.1

06/01/1982

RPI 606

Deferimento

#9.1

01/26/1982

RPI 588

From the same holder

PROCESSO PARA A PREPARACAO DE UMA BORRACHA EM FORMA DE PO CONTENDO CARGAS PROCESSO PARA A PREPARACAO DE PARA-ALQUILFENOIS AGENTE DE REVESTIMENTO,AQUOSO,DE SECA EM OXIDATIVA MASSAS DE MOLDACAO TERMOPLASTICAS,E SUA APLICACAO PROCESSO PARA A PRODUCAO DE MISTURAS DE BORRACHA E CARGA,EM FORMA DE PO,LIVREMENTE ESCOAVEIS,EVENTUALMENTE CONTENDO OLEO PLASTIFICANTE,MISTURAS ASSIM OBTIDAS,E SUA APLICACAO APLICACAO DE BIS-AMIDAS DO ACIDO QUADRATICO PROCESSO PARA A PREPARACAO DE METIL-TERCIO-BUTILETER

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