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Official data from INPI

CALHA CONCENTRADORA DE RAIOS SOLARES

Prazo de SigiloInvention Patent

Application data

Number

PI8901288

Type

Invention Patent

Filing

03/09/1989

Publication

10/16/1990

Progress at the INPI

  1. Filing03/09/89
  2. Publication10/16/90
  3. Examination03/19/91
  4. Allowance04/19/94
  5. Grant12/27/94
  6. Expired12/15/09

The letters patent expired on 12/15/2009: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. K. (pessoa física)

BA, BR

Inventors

C. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/09/1989

RPI 968

Republicação - classificação IPC

#15.11

A classificação anterior era: E04D 13/18

08/25/2015

RPI 2329

Carta-patente expirada

#21.1

Patente extinta em 09/03/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/16/1994

RPI 1237

Deferimento

#9.1

04/19/1994

RPI 1220

Solicitação de exame técnico

#4.1

03/19/1991

RPI 1059

Publicação do pedido de patente

#3.1

10/16/1990

RPI 1037

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