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Official data from INPI

PROCESSO E CÉLULA FOTOVOLTÁICA PARA A FORMAÇÃO DE UMA MONOCAMADA POLICRISTALINA

PublicadaInvention Patent

Application data

Number

PI8705452

Type

Invention Patent

Filing

10/13/1987

Publication

05/24/1988

Progress at the INPI

  1. Filing10/13/87
  2. Publication05/24/88
  3. Examination10/30/90
  4. Allowance06/07/94
  5. Grant11/29/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Photon Energy, Inc.

US

Photon Energy, Inc. d/b/a Golden Photon, Inc

US

Inventors

D. B. (pessoa física)

US

J. J. (pessoa física)

US

S. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

918.115 · 10/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 13/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/29/1994

RPI 1252

Deferimento

#9.1

06/07/1994

RPI 1227

14.1

02/01/1994

RPI 1209

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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