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Official data from INPI

Composição superplasticizante de cimento, composição de cimento; processo de formação de estrutura de cimento.

Em ExigênciaInvention Patent

Application data

Number

PI8206357

Type

Invention Patent

Filing

11/03/1982

Publication

09/27/1983

Progress at the INPI

Office action pending
  1. Filing11/03/82
  2. Publication09/27/83
  3. Examination12/31/85
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical office action on this application. If it is not answered in time, the application is abandoned (art. 36 of the Brazilian IP Act).

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Latest action published by the INPI: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

US

See this company's full portfolio

Inventors

M. J. (pessoa física)

M. A. (pessoa física)

Technical data

Priority claims

US

349.555 · 02/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/22/1988

RPI 944

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

12/31/1985

RPI 793

8.1

08/20/1985

RPI 774

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Pedido de patente depositado

#2.1

12/21/1982

RPI 635

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C04B 31/30.

03/27/2018

RPI 2464

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