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Official data from INPI

BARREIRA DE ESTRADA

IndeferidaInvention Patent
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Application data

Number

PI8107207

Type

Invention Patent

Filing

11/07/1980

Publication

07/27/1982
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Progress at the INPI

Under appeal
  1. Filing11/07/80
  2. Publication07/27/82
  3. Examination07/24/84
  4. Refused05/05/87
  5. Grant
  6. In force

The application was refused by the INPI on 05/05/1987. The invention was never patented.

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Latest action published by the INPI: 05/05/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT BARRIER CORP [US]

Inventors

C. C. (pessoa física)

W. A. (pessoa física)

Technical data

IPC Classification

E01F 15/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/05/1987

RPI 863

Conhecimento de parecer técnico

#7.1

09/09/1986

RPI 829

Conhecimento de parecer técnico

#7.1

08/27/1985

RPI 775

6.2

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Pedido de patente depositado

#2.1

12/22/1981

RPI 583

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