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Official data from INPI

REVESTIMENTO DE ESTANHO DE SILOXANO

Em AnáliseInvention Patent
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Application data

Number

PI7705651

Type

Invention Patent

Filing

08/26/1976

Publication

-
View on INPI

Progress at the INPI

  1. Filing08/26/76
  2. Publication
  3. Examination
  4. Allowance08/16/83
  5. Grant03/27/84
  6. Terminated10/23/90

The patent was granted on 03/27/1984 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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMERON INC

Inventors

G. A. (pessoa física)

L. G. (pessoa física)

Technical data

IPC Classification

C08G 77/02C08G 77/04C08G 77/22C08G 77/48C08G 77/58C09D 183/00C09D 5/14C09D 5/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

03/08/1988

RPI 907

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/06/1983

RPI 685

Deferimento

#9.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

15.0

02/09/1982

RPI 590

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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