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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8506365

Type

Invention Patent

Filing

12/19/1985

Publication

09/02/1986

Progress at the INPI

Awaiting grant fee payment
  1. Filing12/19/85
  2. Publication09/02/86
  3. Examination10/18/88
  4. Allowance03/26/91
  5. Grant
  6. In force

The application was allowed by the INPI on 03/26/1991. The grant of the letters patent is being processed.

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Latest action published by the INPI: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M&T Chemicals Inc.

US

See this company's full portfolio

Inventors

B. W. (pessoa física)

L. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/18/1988

RPI 939

Publicação do pedido de patente

#3.1

09/02/1986

RPI 828

Pedido de patente depositado

#2.1

03/18/1986

RPI 804

Retificação

#15.3

03/22/1994

RPI 1216

Republicação - classificação IPC

#15.11

07/16/1991

RPI 1076

Deferimento

#9.1

03/26/1991

RPI 1060

Exigência - art. 36 da LPI

#6.1

10/30/1990

RPI 1039

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