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Official data from INPI

COMPOSIÇÕES SINERGÍSTICAS ABSORVEDORAS DE ULTRA-VIOLETA CONTENDO HIDROXIARIL TRIAZINAS E TETRA-ALQUIL PIPERIDINAS, E, PROCESSO APERFEIÇOADO PARA ESTABILIZAR UM POLÍMERO.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104627

Type

Invention Patent

Filing

10/25/1991

Publication

06/09/1992

Progress at the INPI

  1. Filing10/25/91
  2. Publication06/09/92
  3. Examination07/26/94
  4. Allowance11/24/98
  5. Grant06/01/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

P. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/605,199 · 10/29/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 25/10/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

06/01/1999

RPI 1482

Deferimento

#9.1

11/24/1998

RPI 1455

Exigência - art. 36 da LPI

#6.1

09/16/1997

RPI 1398

Solicitação de exame técnico

#4.1

07/26/1994

RPI 1234

Publicação do pedido de patente

#3.1

06/09/1992

RPI 1123

Pedido de patente depositado

#2.1

11/26/1991

RPI 1095

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