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Official data from INPI

ELEMENTOS FOTOCURÁVEIS E PLACAS DE IMPRESSÃO EM RELEVO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101694

Type

Invention Patent

Filing

04/26/1991

Publication

12/10/1991

Progress at the INPI

  1. Filing04/26/91
  2. Publication12/10/91
  3. Examination09/08/92
  4. Allowance01/12/99
  5. Grant04/18/00
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PT Sub, Inc.

US

W.R.Grace & Co.-Conn

US

See this company's full portfolio

Inventors

M. Y. (pessoa física)

US

W. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

514.825 · 04/26/1990

US

681.671 · 04/10/1991

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/04/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

04/18/2000

RPI 1528

Deferimento

#9.1

01/12/1999

RPI 1462

Exigência - art. 36 da LPI

#6.1

11/18/1997

RPI 1407

14.1

12/05/1995

RPI 1305

Solicitação de exame técnico

#4.1

09/08/1992

RPI 1136

Publicação do pedido de patente

#3.1

12/10/1991

RPI 1097

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