Official data from INPI

Processo para produção de celulose microbiana

Em AnáliseInvention Patent

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Application data

Number

PI8506644

Type

Invention Patent

Filing

12/20/1985

Publication

09/09/1986

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Progress at the INPI

Filing12/20/85
Publication09/09/86
Examination09/20/88
Allowance01/17/95
Grant06/27/95
Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Board of Regents, The University of Texas System

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Inventors

E. R. (pessoa física)

L. H. (pessoa física)

R. B. (pessoa física)

Technical data

IPC Classification

C12P 19/04

Priority claims

684.844 · 12/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

09/09/1986

RPI 829

Pedido de patente depositado

#2.1

04/08/1986

RPI 807

Carta-patente expirada

#21.1

Patente extinta em 20/12/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

06/27/1995

RPI 1282

Deferimento

#9.1

01/17/1995

RPI 1259

Exigência - art. 36 da LPI

#6.1

09/20/1994

RPI 1242

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