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Official data from INPI

PROCESSO PARA LIGAR QUIMICAMENTE ANTIOXIDANTES CONTENDO INSATURACAO ALIFATICA POLIMERIZAVEL VIA RADICAIS LIVRES A MATERIAIS POLIMERICOS

ConcedidaInvention Patent

Application data

Number

PI7705680

Type

Invention Patent

Filing

09/02/1976

Publication

-

Progress at the INPI

  1. Filing09/02/76
  2. Publication
  3. Examination
  4. Allowance09/25/84
  5. Grant03/26/85
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOODYEAR TIRE & RUBBER

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Inventors

P. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

Conhecimento de parecer técnico

#7.1

07/27/1982

RPI 614

15.0

06/29/1982

RPI 610

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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