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Official data from INPI

FILTRO PARA TELA DE CRT.

PublicadaInvention Patent

Application data

Number

PI8703803

Type

Invention Patent

Filing

07/21/1987

Publication

03/29/1988

Progress at the INPI

Under appeal
  1. Filing07/21/87
  2. Publication03/29/88
  3. Examination12/26/90
  4. Refused05/11/93
  5. Grant
  6. In force

The application was refused by the INPI on 05/11/1993. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mitsui Toatsu Chemicals, Inc.

JP

See this company's full portfolio

Inventors

E. S. (pessoa física)

JP

H. A. (pessoa física)

JP

K. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

61169678 · 08/21/1986

JP

61181856 · 08/04/1986

JP

61181858 · 08/04/1986

JP

61205896 · 09/03/1986

JP

61266530 · 11/11/1986

JP

61266531 · 11/11/1986

JP

61306208 · 12/24/1986

JP

62003352 · 01/12/1987

JP

62003353 · 01/12/1987

JP

62058756 · 03/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/29/1988

RPI 910

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Indeferimento

#9.2

05/11/1993

RPI 1171

Conhecimento de parecer técnico

#7.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

12/26/1990

RPI 1047

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