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Official data from INPI

PROCESSO E APARELHO PARA LIQUEFAZER MATERIAL TERMICAMENTE FUSÍVEL

Em AnáliseInvention Patent

Application data

Number

PI8606483

Type

Invention Patent

Filing

12/29/1986

Publication

10/20/1987

Progress at the INPI

  1. Filing12/29/86
  2. Publication10/20/87
  3. Examination09/13/88
  4. Allowance10/27/92
  5. Grant04/27/93
  6. Terminated10/03/95

The patent was granted on 04/27/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC [US]

See this company's full portfolio

Inventors

D. M. (pessoa física)

US

G. H. (pessoa física)

US

H. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

815.700 · 01/02/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

10/20/1987

RPI 887

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

03/09/1993

RPI 1162

Deferimento

#9.1

10/27/1992

RPI 1143

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