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Official data from INPI

PROCESSO DE EXTINCAO DE INCENDIO EM LIQUIDO HIDROFILICO E DE DISSOLUCAO ACELERADA DE POLI-SACARIDEO EM MEIO AQUOSO E CONCENTRADO DE EXTINCAO DE INCENDIOS BOMBEAVEL AQUOSO

Em AnáliseInvention Patent

Application data

Number

PI7803892

Type

Invention Patent

Filing

06/21/1977

Publication

-

Progress at the INPI

  1. Filing06/21/77
  2. Publication
  3. Examination
  4. Allowance01/03/84
  5. Grant08/28/84
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHILADELPHIA SUBURBAN CORP

Inventors

C. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

04/12/1988

RPI 912

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Exigência - art. 36 da LPI

#6.1

05/11/1982

RPI 603

6.2

12/15/1981

RPI 582

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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