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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM MATERIAL RESINOSO

Em AnáliseInvention Patent

Application data

Number

PI8600794

Type

Invention Patent

Filing

02/25/1986

Publication

11/04/1986

Progress at the INPI

  1. Filing02/25/86
  2. Publication11/04/86
  3. Examination12/13/88
  4. Allowance05/26/92
  5. Grant01/26/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

B. H. (pessoa física)

US

S. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

706.065 · 02/26/1985

US

799.689 · 11/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/13/1988

RPI 947

Publicação do pedido de patente

#3.1

11/04/1986

RPI 837

Pedido de patente depositado

#2.1

08/12/1986

RPI 825

Carta-patente expirada

#21.1

Patente extinta em 25/02/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

05/26/1992

RPI 1121

Republicação - classificação IPC

#15.11

11/12/1991

RPI 1093

Exigência - art. 36 da LPI

#6.1

06/18/1991

RPI 1072

Exigência - art. 36 da LPI

#6.1

10/23/1990

RPI 1038

6.2

01/02/1990

RPI 1000

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