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Official data from INPI

COMPOSICAO CONTENDO COPOLIMEROS DE EPIHALO-HIDRINAS

Em AnáliseInvention Patent

Application data

Number

PI7804056

Type

Invention Patent

Filing

06/27/1977

Publication

-

Progress at the INPI

  1. Filing06/27/77
  2. Publication
  3. Examination
  4. Allowance07/14/87
  5. Grant
  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: 11/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOODRICH CO B F

See this company's full portfolio

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

09/06/1983

RPI 672

Exigência - art. 36 da LPI

#6.1

11/09/1982

RPI 629

6.2

10/06/1981

RPI 572

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

Pedido de licença compulsória

#20.1

05/11/1993

RPI 1171

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