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Official data from INPI

EMULSÃO FOTOGRÁFICA DE BROMOIODETO DE PRATA, ELEMENTO FOTOGRÁFICO, E, PROCESSO PARA PREPARAR UMA EMULSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8903932

Type

Invention Patent

Filing

08/04/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing08/04/89
  2. Publication03/20/90
  3. Examination06/09/92
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eastman Kodak Company

US

See this company's full portfolio

Inventors

E. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

229,371 · 08/05/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

Pedido de patente depositado

#2.1

01/09/1990

RPI 1001

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