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Official data from INPI

PROCESSO DE PREPARACAO EM MASSA,EM DUAS FASES,DE POLIMEROS E COPOLIMEROS A BASE DE CLORETO DE VINILA COM BAIXO TEOR EM PRODUTO GROSSEIRO

Em AnáliseInvention Patent

Application data

Number

PI7805898

Type

Invention Patent

Filing

09/12/1977

Publication

-

Progress at the INPI

  1. Filing09/12/77
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Terminated07/12/88

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

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Inventors

E. F. (pessoa física)

S. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Pedido de licença compulsória

#20.1

07/10/1984

RPI 716

16.3

03/20/1984

RPI 700

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Republicação - classificação IPC

#15.11

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

12/07/1982

RPI 633

6.2

12/22/1981

RPI 583

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