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Official data from INPI

COMPOSIÇÃO CURÁVEL EM POLIORGANOSSILOXANO RETICULADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000936

Type

Invention Patent

Filing

02/28/1990

Publication

02/19/1991

Progress at the INPI

  1. Filing02/28/90
  2. Publication02/19/91
  3. Examination05/25/93
  4. Allowance05/26/98
  5. Grant11/24/98
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. C. (pessoa física)

US

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Inventors

A. J. (pessoa física)

US

D. G. (pessoa física)

US

S. N. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/315.431 · 02/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/02/2010

01/08/2013

RPI 2192

Republicação - classificação IPC

#15.11

ALTERADA DE C08L 83/06

12/08/1998

RPI 1457

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

05/26/1998

RPI 1431

Exigência - art. 36 da LPI

#6.1

11/19/1996

RPI 1355

Solicitação de exame técnico

#4.1

05/25/1993

RPI 1173

Publicação do pedido de patente

#3.1

02/19/1991

RPI 1055

Pedido de patente depositado

#2.1

06/19/1990

RPI 1023

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