Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE DISSULFETO DE 2,2'-DIBENZOTIAZOLILA

Em AnáliseInvention Patent

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Application data

Number

PI8404121

Type

Invention Patent

Filing

08/17/1984

Publication

07/16/1985

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Progress at the INPI

Filing08/17/84
Publication07/16/85
Examination08/11/87
Allowance01/23/90
Grant08/28/90
Terminated06/20/95

The patent was granted on 08/28/1990 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: 08/11/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

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Inventors

D. W. (pessoa física)

Technical data

IPC Classification

C07D 277/70

Priority claims

P 33 29 976.5 · 08/19/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

07/16/1985

RPI 769

Pedido de patente depositado

#2.1

10/23/1984

RPI 731

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

Republicação - classificação IPC

#15.11

09/03/1991

RPI 1083

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

05/22/1990

RPI 1019

Deferimento

#9.1

01/23/1990

RPI 1003

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