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Official data from INPI

COMPOSIÇÃO DE BORRACHA NITRÍLICA/TERPOLÍMERO DE ENXERTO DE ETILENO-PROPILENO-DIENO NÃO CONJUGADO (EPDM).

Em AnáliseInvention Patent

Application data

Number

PI8104481

Type

Invention Patent

Filing

07/14/1981

Publication

03/30/1982

Progress at the INPI

  1. Filing07/14/81
  2. Publication03/30/82
  3. Examination03/13/84
  4. Allowance06/14/88
  5. Grant09/25/90
  6. Terminated09/13/94

The patent was granted on 09/25/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uniroyal, Inc.

US

See this company's full portfolio

Inventors

R. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

168.873 · 07/14/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

120

09/12/1989

RPI 986

Recurso

#12.1

09/20/1988

RPI 935

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

04/23/1985

RPI 757

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

03/30/1982

RPI 597

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

Concessão da patente

#16.1

09/25/1990

RPI 1034

110

05/22/1990

RPI 1019

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