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Official data from INPI

PROCESSO E APARELHO PARA PULVERIZAÇÃO DE LÍQUIDO

ConcedidaInvention Patent

Application data

Number

PI7902307

Type

Invention Patent

Filing

04/16/1979

Publication

-

Progress at the INPI

  1. Filing04/16/79
  2. Publication
  3. Examination12/22/81
  4. Allowance04/05/83
  5. Grant10/25/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 10/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

C. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Solicitação de exame técnico

#4.1

12/22/1981

RPI 583

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B05B 5/02.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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