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Official data from INPI

PROCESSO PARA REMOCAO DE COMPONENTES ORGANICOS VOLATEIS DE EFLUENTES DE SULFITO USADOS

ConcedidaInvention Patent

Application data

Number

PI7603586

Type

Invention Patent

Filing

06/04/1976

Publication

-

Progress at the INPI

  1. Filing06/04/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/28/83
  6. Expired08/03/93

The letters patent expired on 08/03/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT STANDARD ELECTRIC CORP

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Inventors

E. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

15.20

05/17/1983

RPI 656

Notificação para pagamento de retribuição

#13.1

03/22/1983

RPI 648

Arquivamento - Art. 38 §2° da LPI

#11.4

01/18/1983

RPI 639

Arquivamento - Art. 38 §2° da LPI

#11.4

08/24/1982

RPI 618

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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