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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE DERIVADOS DE POLIALQUILDIAZASPIRODECANO E MISTURA ESTABILIZADA CONTRA A DECOMPOSIÇÃO POR ULTRAVIOLETA.

Em ExigênciaInvention Patent
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Application data

Number

PI8302528

Type

Invention Patent

Filing

05/13/1983

Publication

01/17/1984
View on INPI

Progress at the INPI

  1. Filing05/13/83
  2. Publication01/17/84
  3. Examination01/14/86
  4. Allowance04/03/90
  5. Grant09/25/90
  6. Terminated04/02/96

The patent was granted on 09/25/1990 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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

D. W. (pessoa física)

DE

Technical data

IPC Classification

C07D 413/14C08K 5/34

Priority claims

DE

P 32 18 172.8 · 05/14/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

09/19/1989

RPI 987

Exigência - art. 36 da LPI

#6.1

03/28/1989

RPI 962

Solicitação de exame técnico

#4.1

01/14/1986

RPI 795

Publicação do pedido de patente

#3.1

01/17/1984

RPI 691

Pedido de patente depositado

#2.1

06/28/1983

RPI 662

Anuidade - prazo legal encerrado

#18.2

04/02/1996

RPI 1322

Republicação - classificação IPC

#15.11

02/26/1991

RPI 1056

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

08/14/1990

RPI 1028

Deferimento

#9.1

04/03/1990

RPI 1012

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