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Official data from INPI

SISTEMA DE AQUECIMENTO DE POÇOS

PublicadaInvention Patent

Application data

Number

PI8806104

Type

Invention Patent

Filing

11/22/1988

Publication

08/08/1989

Progress at the INPI

Under appeal
  1. Filing11/22/88
  2. Publication08/08/89
  3. Examination04/17/90
  4. Refused04/20/93
  5. Grant
  6. In force

The application was refused by the INPI on 04/20/1993. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

Inventors

G. S. (pessoa física)

H. S. (pessoa física)

J. B. (pessoa física)

V. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

US

123.931 · 11/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/08/1989

RPI 981

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Indeferimento

#9.2

04/20/1993

RPI 1168

Conhecimento de parecer técnico

#7.1

09/22/1992

RPI 1138

Pedido de certificado de adição de invenção

#5.1

08/14/1990

RPI 1028

Solicitação de exame técnico

#4.1

04/17/1990

RPI 1014

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