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Official data from INPI

COMPOSIÇÕES DE REVESTIMENTO REFRATÁRIAS

ArquivadaInvention PatentPCT · US1989003849

Application data

Number

PI8907075

Type

Invention Patent

Filing

09/06/1989

Publication

10/02/1990

PCT

US1989003849

Progress at the INPI

  1. Filing09/06/89
  2. Publication10/02/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 09/06/1989 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/27/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cookson Group PLC

GB

Vesuvius Crucible Company

US

Inventors

D. H. (pessoa física)

US

F. M. (pessoa física)

H. P. (pessoa física)

Technical data

IPC Classification

Priority claims

US

240,961 · 09/06/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C21B 7/06; C04B 35/48; C04B 35/54; C04B 35/58.

03/27/2018

RPI 2464

Arquivamento - Art. 33 da LPI

#11.1

12/22/1992

RPI 1151

Notificação de entrada na fase nacional - PCT

#1.3

10/02/1990

RPI 1035

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