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Official data from INPI

PROCESSO DE CONTROLAR UM EXPANSOR DE TUBO EM FORMA DE U OU DE GRAMPO DE CABELO, USADO NA FABRICAÇÃO DE TROCADORES DE CALOR DE TUBO E ALETA DE CHAPA E APARELHO

DeferidaInvention Patent

Application data

Number

PI9103275

Type

Invention Patent

Filing

07/31/1991

Publication

05/26/1992

Progress at the INPI

Awaiting grant fee payment
  1. Filing07/31/91
  2. Publication05/26/92
  3. Examination02/09/93
  4. Allowance06/11/96
  5. Grant
  6. In force

The application was allowed by the INPI on 06/11/1996. The grant of the letters patent is being processed.

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Latest action published by the INPI: 05/06/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

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Inventors

K. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/572.819 · 08/27/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

05/06/1997

RPI 1379

Deferimento

#9.1

06/11/1996

RPI 1332

Solicitação de exame técnico

#4.1

02/09/1993

RPI 1158

Publicação do pedido de patente

#3.1

05/26/1992

RPI 1121

Pedido de patente depositado

#2.1

04/21/1992

RPI 1116

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