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Official data from INPI

PROCESSO DE CARBONATACAO PARA FABRICACAO DE BIOCARBONATO DE SODIO

Em AnáliseInvention Patent

Application data

Number

PI7903330

Type

Invention Patent

Filing

05/30/1978

Publication

-

Progress at the INPI

  1. Filing05/30/78
  2. Publication
  3. Examination
  4. Allowance01/24/84
  5. Grant08/28/84
  6. Terminated05/17/88

The patent was granted on 08/28/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

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Inventors

C. D. (pessoa física)

C. W. (pessoa física)

C. P. (pessoa física)

S. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

07/12/1983

RPI 664

Conhecimento de parecer técnico

#7.1

06/29/1982

RPI 610

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