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Official data from INPI

COMPOSTOS CERAMICOS COM MAIOR RESISTENCIA A CHOQUE TERMICO

Em AnáliseInvention Patent

Application data

Number

PI8307036

Type

Invention Patent

Filing

12/20/1982

Publication

07/31/1984

Progress at the INPI

  1. Filing12/20/82
  2. Publication07/31/84
  3. Abandoned08/12/86
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

Talk to a specialist

Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

See this company's full portfolio

Inventors

H. W. (pessoa física)

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

05/16/1989

RPI 969

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/13/1988

RPI 947

Conhecimento de parecer técnico

#7.1

05/31/1988

RPI 919

6.2

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

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