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Official data from INPI

PROCESSO PARA TRATAMENTO DE SUBSTRATOS SÓLIDOS COM UMA COMPOSIÇÃO AQUOSA DE POLÍMEROS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005685

Type

Invention Patent

Filing

11/09/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing11/09/90
  2. Publication09/17/91
  3. Examination12/28/93
  4. Allowance09/29/98
  5. Grant02/23/99
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rohm And Haas Company

US

See this company's full portfolio

Inventors

L. S. (pessoa física)

US

M. F. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

435,850 · 11/13/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/11/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

02/23/1999

RPI 1468

Republicação - classificação IPC

#15.11

Alterada a Classificação para Int.Cl.6 B05D 7/08 e C08F 265/06.

09/29/1998

RPI 1449

Deferimento

#9.1

09/29/1998

RPI 1449

Exigência - art. 36 da LPI

#6.1

05/19/1998

RPI 1430

Solicitação de exame técnico

#4.1

12/28/1993

RPI 1204

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/30/1991

RPI 1065

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