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Official data from INPI

PROCESSO DE FABRICAÇÃO DE POLIVINILBUTIRAL, E, VIDRAÇA FOLHEADA.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002704

Type

Invention Patent

Filing

06/07/1990

Publication

08/20/1991

Progress at the INPI

  1. Filing06/07/90
  2. Publication08/20/91
  3. Examination08/03/93
  4. Allowance01/05/99
  5. Grant07/13/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E.I Du Pont de Nemours And Company

US

S. I. (pessoa física)

FR

See this company's full portfolio

Inventors

D. D. (pessoa física)

FR

D. K. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

8907577 · 06/08/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/06/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

07/13/1999

RPI 1488

Deferimento

#9.1

01/05/1999

RPI 1461

Exigência - art. 36 da LPI

#6.1

09/15/1998

RPI 1447

Exigência - art. 36 da LPI

#6.1

05/05/1998

RPI 1428

14.4

06/14/1994

RPI 1228

Solicitação de exame técnico

#4.1

08/03/1993

RPI 1183

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

10/16/1990

RPI 1037

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