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Official data from INPI

PROCESSO E APARELHO PARA PRODUZIR VIDRO DE FLUTUAÇÃO COM ESPESSURA MENOR QUE A DE EQUILÍBRIO

ConcedidaInvention Patent

Application data

Number

PI8206134

Type

Invention Patent

Filing

10/21/1982

Publication

09/20/1983

Progress at the INPI

  1. Filing10/21/82
  2. Publication09/20/83
  3. Examination08/13/85
  4. Allowance01/10/89
  5. Grant08/29/89
  6. Terminated07/18/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG Industries, Inc

US

See this company's full portfolio

Inventors

G. K. (pessoa física)

US

J. S. (pessoa física)

US

J. G. (pessoa física)

US

Technical data

Priority claims

US

326.890 · 12/02/1981

US

336.756 · 01/04/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

01/10/1989

RPI 951

Conhecimento de parecer técnico

#7.1

07/05/1988

RPI 924

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/14/1982

RPI 634

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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