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Official data from INPI

PROCESSO DE PREPARAÇÃO DE VIDROS FOTOCRÔMICOS DE ALTO ÍNDICE REFRATIVO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002139

Type

Invention Patent

Filing

05/08/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/08/90
  2. Publication08/13/91
  3. Examination07/20/93
  4. Allowance11/11/97
  5. Grant08/25/98
  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

C. I. (pessoa física)

US

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Inventors

R. A. (pessoa física)

US

Technical data

Priority claims

US

349,693 · 05/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

Conhecimento de parecer técnico

#7.1

01/09/1996

RPI 1310

Solicitação de exame técnico

#4.1

07/20/1993

RPI 1181

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/18/1990

RPI 1033

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