Official data from INPI

PROCESSO PARA PRODUZIR DIMETILACETAMIDA

Em AnáliseInvention Patent

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Application data

Number

PI8500478

Type

Invention Patent

Filing

02/01/1985

Publication

09/09/1986

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Progress at the INPI

Filing02/01/85
Publication09/09/86
Examination10/18/88
Allowance07/23/91
Grant04/28/92
Terminated12/24/96

The patent was granted on 04/28/1992 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

No applicants.

Inventors

H. B. (pessoa física)

Technical data

IPC Classification

C07C 103/127

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/18/1988

RPI 939

Publicação do pedido de patente

#3.1

09/09/1986

RPI 829

Pedido de patente depositado

#2.1

04/23/1985

RPI 757

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

11/19/1991

RPI 1094

Republicação - classificação IPC

#15.11

10/15/1991

RPI 1089

Deferimento

#9.1

07/23/1991

RPI 1077

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